blob: 9a21e90482992a0fd5dd55e75262e2faea92230f [file] [log] [blame]
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001mbed TLS ChangeLog (Sorted per branch, date)
Paul Bakker99ed6782011-01-05 14:48:42 +00002
Manuel Pégourié-Gonnard6fc3aa02021-12-14 11:13:29 +01003= mbed TLS 2.16.12 branch released 2021-12-17
Manuel Pégourié-Gonnard652e0352021-12-14 11:08:55 +01004
5Security
6 * Zeroize several intermediate variables used to calculate the expected
7 value when verifying a MAC or AEAD tag. This hardens the library in
8 case the value leaks through a memory disclosure vulnerability. For
9 example, a memory disclosure vulnerability could have allowed a
10 man-in-the-middle to inject fake ciphertext into a DTLS connection.
11 * Fix a double-free that happened after mbedtls_ssl_set_session() or
12 mbedtls_ssl_get_session() failed with MBEDTLS_ERR_SSL_ALLOC_FAILED
13 (out of memory). After that, calling mbedtls_ssl_session_free()
14 and mbedtls_ssl_free() would cause an internal session buffer to
15 be free()'d twice.
16
17Bugfix
18 * Stop using reserved identifiers as local variables. Fixes #4630.
19 * The GNU makefiles invoke python3 in preference to python except on Windows.
20 The check was accidentally not performed when cross-compiling for Windows
21 on Linux. Fix this. Fixes #4774.
22 * Mark basic constraints critical as appropriate. Note that the previous
23 entry for this fix in the 2.16.10 changelog was in error, and it was not
24 included in the 2.16.10 release as was stated.
25 Make 'mbedtls_x509write_crt_set_basic_constraints' consistent with RFC
26 5280 4.2.1.9 which says: "Conforming CAs MUST include this extension in
27 all CA certificates that contain public keys used to validate digital
28 signatures on certificates and MUST mark the extension as critical in
29 such certificates." Previous to this change, the extension was always
30 marked as non-critical. This was fixed by #4044.
31 * Fix missing constraints on x86_64 assembly code for bignum multiplication
32 that broke some bignum operations with (at least) Clang 12.
33 Fixes #4116, #4786, #4917.
34 * Failures of alternative implementations of AES or DES single-block
35 functions enabled with MBEDTLS_AES_ENCRYPT_ALT, MBEDTLS_AES_DECRYPT_ALT,
36 MBEDTLS_DES_CRYPT_ECB_ALT or MBEDTLS_DES3_CRYPT_ECB_ALT were ignored.
37 This does not concern the implementation provided with Mbed TLS,
38 where this function cannot fail, or full-module replacements with
39 MBEDTLS_AES_ALT or MBEDTLS_DES_ALT. Reported by Armelle Duboc in #1092.
40 * Some failures of HMAC operations were ignored. These failures could only
41 happen with an alternative implementation of the underlying hash module.
42 * Fix the build of sample programs when neither MBEDTLS_ERROR_C nor
43 MBEDTLS_ERROR_STRERROR_DUMMY is enabled.
Manuel Pégourié-Gonnardb9f45682021-12-15 10:22:51 +010044 * Fix a bug in mbedtls_gcm_starts() when the bit length of the iv
45 exceeds 2^32. Fixes #4884.
Manuel Pégourié-Gonnard652e0352021-12-14 11:08:55 +010046 * Fix the build when no SHA2 module is included. Fixes #4930.
47 * Fix the build when only the bignum module is included. Fixes #4929.
48 * Fix a potential invalid pointer dereference and infinite loop bugs in
49 pkcs12 functions when the password is empty. Fix the documentation to
50 better describe the inputs to these functions and their possible values.
51 Fixes #5136.
52
53Changes
54 * Improve the performance of base64 constant-flow code. The result is still
55 slower than the original non-constant-flow implementation, but much faster
56 than the previous constant-flow implementation. Fixes #4814.
57
Bence Szépkúti571f4752021-07-05 19:48:18 +020058= mbed TLS 2.16.11 branch released 2021-07-07
Bence Szépkúti53b960d2021-07-05 16:17:07 +010059
60Security
Dave Rodgman8005aa22021-07-05 18:10:27 +010061 * Fix a bias in the generation of finite-field Diffie-Hellman-Merkle (DHM)
62 private keys and of blinding values for DHM and elliptic curves (ECP)
63 computations. Reported by FlorianF89 in #4245.
64 * Fix a potential side channel vulnerability in ECDSA ephemeral key generation.
65 An adversary who is capable of very precise timing measurements could
66 learn partial information about the leading bits of the nonce used for the
67 signature, allowing the recovery of the private key after observing a
68 large number of signature operations. This completes a partial fix in
69 Mbed TLS 2.16.4.
Bence Szépkúti53b960d2021-07-05 16:17:07 +010070 * It was possible to configure MBEDTLS_ECP_MAX_BITS to a value that is
71 too small, leading to buffer overflows in ECC operations. Fail the build
72 in such a case.
73 * An adversary with access to precise enough information about memory
74 accesses (typically, an untrusted operating system attacking a secure
75 enclave) could recover an RSA private key after observing the victim
76 performing a single private-key operation. Found and reported by
77 Zili KOU, Wenjian HE, Sharad Sinha, and Wei ZHANG.
78 * An adversary with access to precise enough timing information (typically, a
79 co-located process) could recover a Curve25519 or Curve448 static ECDH key
80 after inputting a chosen public key and observing the victim performing the
81 corresponding private-key operation. Found and reported by Leila Batina,
82 Lukas Chmielewski, Björn Haase, Niels Samwel and Peter Schwabe.
83
84Bugfix
85 * Fix premature fopen() call in mbedtls_entropy_write_seed_file which may
86 lead to the seed file corruption in case if the path to the seed file is
87 equal to MBEDTLS_PLATFORM_STD_NV_SEED_FILE. Contributed by Victor
88 Krasnoshchok in #3616.
89 * Fix some cases in the bignum module where the library constructed an
90 unintended representation of the value 0 which was not processed
91 correctly by some bignum operations. This could happen when
92 mbedtls_mpi_read_string() was called on "-0", or when
93 mbedtls_mpi_mul_mpi() and mbedtls_mpi_mul_int() was called with one of
94 the arguments being negative and the other being 0. Fixes #4643.
95 * Fix a compilation error when MBEDTLS_ECP_RANDOMIZE_MXZ_ALT is
96 defined. Fixes #4217.
97 * Fix an incorrect error code when parsing a PKCS#8 private key.
98 * In a TLS client, enforce the Diffie-Hellman minimum parameter size
99 set with mbedtls_ssl_conf_dhm_min_bitlen() precisely. Before, the
100 minimum size was rounded down to the nearest multiple of 8.
101 * In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are
102 defined to specific values. If the code is used in a context
103 where these are already defined, this can result in a compilation
104 error. Instead, assume that if they are defined, the values will
105 be adequate to build Mbed TLS.
106 * The cipher suite TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384 was not available
107 when SHA-1 was disabled and was offered when SHA-1 was enabled but SHA-384
108 was disabled. Fix the dependency. Fixes #4472.
109 * Fix test suite code on platforms where int32_t is not int, such as
110 Arm Cortex-M. Fixes #4530.
111 * Fix some issues affecting MBEDTLS_ARIA_ALT implementations: a misplaced
112 directive in a header and a missing initialization in the self-test.
113 * Fix a missing initialization in the Camellia self-test, affecting
114 MBEDTLS_CAMELLIA_ALT implementations.
115 * Fix a regression introduced in 2.16.8 which broke (D)TLS CBC ciphersuites
116 (when the encrypt-then-MAC extension is not in use) with some ALT
117 implementations of the underlying hash (SHA-1, SHA-256, SHA-384), causing
118 the affected side to wrongly reject valid messages. Fixes #4118.
119 * Fix mbedtls_net_poll() and mbedtls_net_recv_timeout() often failing with
120 MBEDTLS_ERR_NET_POLL_FAILED on Windows. Fixes #4465.
121 * Fix a resource leak in a test suite with an alternative AES
122 implementation. Fixes #4176.
123 * Fix a crash in mbedtls_mpi_debug_mpi on a bignum having 0 limbs.
124 Reported by lhuang04 in #4578. Fixes #4608.
125 * Fix a null pointer dereference when mbedtls_mpi_exp_mod() was called with
126 A=0 represented with 0 limbs. This bug could not be triggered by code
127 that constructed A with one of the mbedtls_mpi_read_xxx functions
128 (including in particular TLS code) since those always built an mpi object
129 with at least one limb. Credit to OSS-Fuzz. Fixes #4641.
130 * Fix mbedtls_mpi_gcd(G,A,B) when the value of B is zero. This had no
131 effect on Mbed TLS's internal use of mbedtls_mpi_gcd(), but may affect
132 applications that call mbedtls_mpi_gcd() directly. Fixes #4642.
133 * mbedtls_pk_sign() and mbedtls_pk_verify() and their extended and
134 restartable variants now require at least the specified hash length if
135 nonzero. Before, for RSA, hash_len was ignored in favor of the length of
136 the specified hash algorithm.
137 * Fix which alert is sent in some cases to conform to the
138 applicable RFC: on an invalid Finished message value, an
139 invalid max_fragment_length extension, or an
140 unsupported extension used by the server.
141
142Changes
143 * Fix the setting of the read timeout in the DTLS sample programs.
144 * Remove the AES sample application programs/aes/aescrypt2 which shows
145 bad cryptographic practice. Fix #1906.
146 * When building the test suites with GNU make, invoke python3 or python, not
147 python2. The build still works with either Python 2.7 or 3.5+, but we
148 recommend using a version of Python that is supported upstream.
149
Dave Rodgmanc7765822021-03-08 18:31:02 +0000150= mbed TLS 2.16.10 branch released 2021-03-12
151
152Default behavior changes
153 * In mbedtls_rsa_context objects, the ver field was formerly documented
154 as always 0. It is now reserved for internal purposes and may take
155 different values.
156
157Security
158 * Fix a buffer overflow in mbedtls_mpi_sub_abs() when calculating
159 |A| - |B| where |B| is larger than |A| and has more limbs (so the
160 function should return MBEDTLS_ERR_MPI_NEGATIVE_VALUE). Only
161 applications calling mbedtls_mpi_sub_abs() directly are affected:
162 all calls inside the library were safe since this function is
163 only called with |A| >= |B|. Reported by Guido Vranken in #4042.
164 * Fix an errorneous estimation for an internal buffer in
165 mbedtls_pk_write_key_pem(). If MBEDTLS_MPI_MAX_SIZE is set to an odd
166 value the function might fail to write a private RSA keys of the largest
167 supported size.
168 Found by Daniel Otte, reported in #4093 and fixed in #4094,
169 backported in #4100.
170 * Fix a stack buffer overflow with mbedtls_net_poll() and
171 mbedtls_net_recv_timeout() when given a file descriptor that is
172 beyond FD_SETSIZE. Reported by FigBug in #4169.
173 * Guard against strong local side channel attack against base64 tables by
174 making access aceess to them use constant flow code.
175
176Bugfix
177 * Fix an incorrect error code if an RSA private operation glitched.
178 * Fix a resource leak in CTR_DRBG and HMAC_DRBG when MBEDTLS_THREADING_C
179 is enabled, on platforms where initializing a mutex allocates resources.
180 This was a regression introduced in the previous release. Reported in
181 #4017, #4045 and #4071.
182 * Ensure that calling mbedtls_rsa_free() or mbedtls_entropy_free()
183 twice is safe. This happens for RSA when some Mbed TLS library functions
184 fail. Such a double-free was not safe when MBEDTLS_THREADING_C was
185 enabled on platforms where freeing a mutex twice is not safe.
186 * Fix a resource leak in a bad-arguments case of mbedtls_rsa_gen_key()
187 when MBEDTLS_THREADING_C is enabled on platforms where initializing
188 a mutex allocates resources.
189 * This change makes 'mbedtls_x509write_crt_set_basic_constraints'
190 consistent with RFC 5280 4.2.1.9 which says: "Conforming CAs MUST
191 include this extension in all CA certificates that contain public keys
192 used to validate digital signatures on certificates and MUST mark the
193 extension as critical in such certificates." Previous to this change,
194 the extension was always marked as non-critical. This was fixed by
195 #4044.
196
Janos Follathf3493022020-12-09 01:35:14 +0000197= mbed TLS 2.16.9 branch released 2020-12-11
Janos Follatha4b98a92020-12-09 00:31:29 +0000198
199Security
200 * Limit the size of calculations performed by mbedtls_mpi_exp_mod to
201 MBEDTLS_MPI_MAX_SIZE to prevent a potential denial of service when
202 generating Diffie-Hellman key pairs. Credit to OSS-Fuzz.
203 * A failure of the random generator was ignored in mbedtls_mpi_fill_random(),
204 which is how most uses of randomization in asymmetric cryptography
205 (including key generation, intermediate value randomization and blinding)
206 are implemented. This could cause failures or the silent use of non-random
207 values. A random generator can fail if it needs reseeding and cannot not
208 obtain entropy, or due to an internal failure (which, for Mbed TLS's own
209 CTR_DRBG or HMAC_DRBG, can only happen due to a misconfiguration).
210 * Fix a compliance issue whereby we were not checking the tag on the
211 algorithm parameters (only the size) when comparing the signature in the
212 description part of the cert to the real signature. This meant that a
213 NULL algorithm parameters entry would look identical to an array of REAL
214 (size zero) to the library and thus the certificate would be considered
215 valid. However, if the parameters do not match in *any* way then the
216 certificate should be considered invalid, and indeed OpenSSL marks these
217 certs as invalid when mbedtls did not.
218 Many thanks to guidovranken who found this issue via differential fuzzing
219 and reported it in #3629.
220 * Zeroising of local buffers and variables which are used for calculations
221 in mbedtls_pkcs5_pbkdf2_hmac(), mbedtls_internal_sha*_process(),
222 mbedtls_internal_md*_process() and mbedtls_internal_ripemd160_process()
223 functions to erase sensitive data from memory. Reported by
224 Johan Malmgren and Johan Uppman Bruce from Sectra.
225
226Bugfix
Janos Follath3d5d8892020-12-09 16:41:44 +0000227 * Fix an invalid (but nonzero) return code from mbedtls_pk_parse_subpubkey()
228 when the input has trailing garbage. Fixes #2512.
Janos Follatha4b98a92020-12-09 00:31:29 +0000229 * Fix rsa_prepare_blinding() to retry when the blinding value is not
230 invertible (mod N), instead of returning MBEDTLS_ERR_RSA_RNG_FAILED. This
231 addresses a regression but is rare in practice (approx. 1 in 2/sqrt(N)).
232 Found by Synopsys Coverity, fix contributed by Peter Kolbus (Garmin).
233 Fixes #3647.
234 * Fix the build when the macro _GNU_SOURCE is defined to a non-empty value.
235 Fix #3432.
236 * Correct the default IV size for mbedtls_cipher_info_t structures using
237 MBEDTLS_MODE_ECB to 0, since ECB mode ciphers don't use IVs.
238 * Make arc4random_buf available on NetBSD and OpenBSD when _POSIX_C_SOURCE is
239 defined. Fix contributed in #3571. Adopted for LTS branch 2.16 in #3602.
240 * Fix build failures on GCC 11. Fixes #3782.
241 * Fix a memory leak in mbedtls_mpi_sub_abs() when the result was negative
242 (an error condition) and the second operand was aliased to the result.
243 * Fix a case in elliptic curve arithmetic where an out-of-memory condition
244 could go undetected, resulting in an incorrect result.
245 * In CTR_DRBG and HMAC_DRBG, don't reset the reseed interval in seed().
246 Fixes #2927.
247 * In PEM writing functions, fill the trailing part of the buffer with null
248 bytes. This guarantees that the corresponding parsing function can read
249 the buffer back, which was the case for mbedtls_x509write_{crt,csr}_pem
250 until this property was inadvertently broken in Mbed TLS 2.19.0.
251 Fixes #3682.
Janos Follath7bbd7ea2020-12-09 16:39:36 +0000252 * Fix a build failure that occurred with the MBEDTLS_AES_SETKEY_DEC_ALT
253 option on. In this configuration key management methods that are required
254 for MBEDTLS_CIPHER_MODE_XTS were excluded from the build and made it fail.
255 Fixes #3818. Reported by John Stroebel.
Janos Follatha4b98a92020-12-09 00:31:29 +0000256
257Changes
258 * Reduce stack usage significantly during sliding window exponentiation.
259 Reported in #3591 and fix contributed in #3592 by Daniel Otte.
260 * Remove the zeroization of a pointer variable in AES rounds. It was valid
261 but spurious and misleading since it looked like a mistaken attempt to
262 zeroize the pointed-to buffer. Reported by Antonio de la Piedra, CEA
263 Leti, France.
264
Janos Follath627aeef2020-08-26 15:34:41 +0100265= mbed TLS 2.16.8 branch released 2020-09-01
Janos Follath4ac5a7b2020-08-26 14:49:52 +0100266
267Features
268 * Support building on e2k (Elbrus) architecture: correctly enable
269 -Wformat-signedness, and fix the code that causes signed-one-bit-field
270 and sign-compare warnings. Contributed by makise-homura (Igor Molchanov)
271 <akemi_homura@kurisa.ch>.
272
273Security
274 * When checking X.509 CRLs, a certificate was only considered as revoked if
275 its revocationDate was in the past according to the local clock if
276 available. In particular, on builds without MBEDTLS_HAVE_TIME_DATE,
277 certificates were never considered as revoked. On builds with
278 MBEDTLS_HAVE_TIME_DATE, an attacker able to control the local clock (for
279 example, an untrusted OS attacking a secure enclave) could prevent
280 revocation of certificates via CRLs. Fixed by no longer checking the
281 revocationDate field, in accordance with RFC 5280. Reported by
282 yuemonangong in #3340. Reported independently and fixed by
283 Raoul Strackx and Jethro Beekman in #3433.
284 * In (D)TLS record decryption, when using a CBC ciphersuites without the
285 Encrypt-then-Mac extension, use constant code flow memory access patterns
286 to extract and check the MAC. This is an improvement to the existing
287 countermeasure against Lucky 13 attacks. The previous countermeasure was
288 effective against network-based attackers, but less so against local
289 attackers. The new countermeasure defends against local attackers, even
290 if they have access to fine-grained measurements. In particular, this
291 fixes a local Lucky 13 cache attack found and reported by Tuba Yavuz,
292 Farhaan Fowze, Ken (Yihan) Bai, Grant Hernandez, and Kevin Butler
293 (University of Florida) and Dave Tian (Purdue University).
294 * Fix side channel in RSA private key operations and static (finite-field)
295 Diffie-Hellman. An adversary with precise enough timing and memory access
296 information (typically an untrusted operating system attacking a secure
297 enclave) could bypass an existing counter-measure (base blinding) and
298 potentially fully recover the private key.
299 * Fix a 1-byte buffer overread in mbedtls_x509_crl_parse_der().
300 Credit to OSS-Fuzz for detecting the problem and to Philippe Antoine
301 for pinpointing the problematic code.
302 * Zeroising of plaintext buffers in mbedtls_ssl_read() to erase unused
303 application data from memory. Reported in #689 by
304 Johan Uppman Bruce of Sectra.
305
306Bugfix
307 * Avoid use of statically sized stack buffers for certificate writing.
308 This previously limited the maximum size of DER encoded certificates
309 in mbedtls_x509write_crt_der() to 2Kb. Reported by soccerGB in #2631.
310 * Reduce the stack consumption of mbedtls_x509write_csr_der() which
311 previously could lead to stack overflow on constrained devices.
312 Contributed by Doru Gucea and Simon Leet in #3464.
313 * Use arc4random_buf on NetBSD instead of rand implementation with cyclical
314 lower bits. Fix contributed in #3540.
315 * Fix building library/net_sockets.c and the ssl_mail_client program on
316 NetBSD. NetBSD conditionals were added for the backport to avoid the risk
317 of breaking a platform. Original fix contributed by Nia Alarie in #3422.
318 Adapted for long-term support branch 2.16 in #3558.
319 * Fix bug in redirection of unit test outputs on platforms where stdout is
320 defined as a macro. First reported in #2311 and fix contributed in #3528.
321 Adopted for LTS branch 2.16 in #3601.
322
323Changes
324 * Update copyright notices to use Linux Foundation guidance. As a result,
325 the copyright of contributors other than Arm is now acknowledged, and the
326 years of publishing are no longer tracked in the source files. This also
327 eliminates the need for the lines declaring the files to be part of
328 MbedTLS. Fixes #3457.
329
Janos Follath6c48d092020-06-26 12:42:11 +0100330= mbed TLS 2.16.7 branch released 2020-07-01
Janos Follath49e6caf2020-06-26 11:33:34 +0100331
332Security
333 * Fix a side channel vulnerability in modular exponentiation that could
334 reveal an RSA private key used in a secure enclave. Noticed by Sangho Lee,
335 Ming-Wei Shih, Prasun Gera, Taesoo Kim and Hyesoon Kim (Georgia Institute
336 of Technology); and Marcus Peinado (Microsoft Research). Reported by Raoul
337 Strackx (Fortanix) in #3394.
338 * Fix side channel in mbedtls_ecp_check_pub_priv() and
339 mbedtls_pk_parse_key() / mbedtls_pk_parse_keyfile() (when loading a
340 private key that didn't include the uncompressed public key), as well as
341 mbedtls_ecp_mul() / mbedtls_ecp_mul_restartable() when called with a NULL
342 f_rng argument. An attacker with access to precise enough timing and
343 memory access information (typically an untrusted operating system
344 attacking a secure enclave) could fully recover the ECC private key.
345 Found and reported by Alejandro Cabrera Aldaya and Billy Brumley.
346 * Fix issue in Lucky 13 counter-measure that could make it ineffective when
347 hardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT
348 macros). This would cause the original Lucky 13 attack to be possible in
349 those configurations, allowing an active network attacker to recover
350 plaintext after repeated timing measurements under some conditions.
351 Reported and fix suggested by Luc Perneel in #3246.
352
353Bugfix
354 * Fix the Visual Studio Release x64 build configuration for mbedtls itself.
355 Completes a previous fix in Mbed TLS 2.16.3 that only fixed the build for
356 the example programs. Reported in #1430 and fix contributed by irwir.
357 * Fix undefined behavior in X.509 certificate parsing if the
358 pathLenConstraint basic constraint value is equal to INT_MAX.
359 The actual effect with almost every compiler is the intended
360 behavior, so this is unlikely to be exploitable anywhere. #3197
361 * Include asn1.h in error.c. Fixes #3328 reported by David Hu.
362 * Fix potential memory leaks in ecp_randomize_jac() and ecp_randomize_mxz()
363 when PRNG function fails. Contributed by Jonas Lejeune in #3318.
364 * Add additional bounds checks in ssl_write_client_hello() preventing
365 output buffer overflow if the configuration declared a buffer that was
366 too small.
367
368Changes
369 * Unify the example programs termination to call mbedtls_exit() instead of
370 using a return command. This has been done to enable customization of the
371 behavior in bare metal environments.
372 * Abort the ClientHello writing function as soon as some extension doesn't
373 fit into the record buffer. Previously, such extensions were silently
374 dropped. As a consequence, the TLS handshake now fails when the output
375 buffer is not large enough to hold the ClientHello.
376 * The ECP module, enabled by `MBEDTLS_ECP_C`, now depends on
377 `MBEDTLS_CTR_DRBG_C`, `MBEDTLS_HMAC_DRBG_C`, `MBEDTLS_SHA512_C` or
378 `MBEDTLS_SHA256_C` for some side-channel coutermeasures. If side channels
379 are not a concern, this dependency can be avoided by enabling the new
380 option `MBEDTLS_ECP_NO_INTERNAL_RNG`.
381
Janos Follathc04703c2020-04-08 17:17:27 +0100382= mbed TLS 2.16.6 branch released 2020-04-14
Andres Amaya Garcia52dbda62018-12-05 21:57:57 +0000383
Manuel Pégourié-Gonnardf6004162020-03-25 12:41:29 +0100384Security
385 * Fix side channel in ECC code that allowed an adversary with access to
386 precise enough timing and memory access information (typically an
387 untrusted operating system attacking a secure enclave) to fully recover
388 an ECDSA private key. Found and reported by Alejandro Cabrera Aldaya,
389 Billy Brumley and Cesar Pereida Garcia. CVE-2020-10932
Manuel Pégourié-Gonnardef98d492020-04-09 11:56:09 +0200390 * Fix a potentially remotely exploitable buffer overread in a
391 DTLS client when parsing the Hello Verify Request message.
Manuel Pégourié-Gonnardf6004162020-03-25 12:41:29 +0100392
Andres Amaya Garcia52dbda62018-12-05 21:57:57 +0000393Bugfix
394 * Fix compilation failure when both MBEDTLS_SSL_PROTO_DTLS and
395 MBEDTLS_SSL_HW_RECORD_ACCEL are enabled.
Janos Follath85ce08d2020-04-09 09:35:43 +0100396 * Fix a function name in a debug message. Contributed by Ercan Ozturk in
397 #3013.
Andres Amaya Garcia52dbda62018-12-05 21:57:57 +0000398
Janos Follath04039a52020-02-19 12:12:38 +0000399= mbed TLS 2.16.5 branch released 2020-02-20
Jaeden Amero68a24eb2020-01-24 18:20:22 +0000400
Manuel Pégourié-Gonnard42b81942020-01-24 12:11:56 +0100401Security
402 * Fix potential memory overread when performing an ECDSA signature
403 operation. The overread only happens with cryptographically low
404 probability (of the order of 2^-n where n is the bitsize of the curve)
405 unless the RNG is broken, and could result in information disclosure or
406 denial of service (application crash or extra resource consumption).
Manuel Pégourié-Gonnardcc41e6c2020-01-29 10:47:34 +0100407 Found by Auke Zeilstra and Peter Schwabe, using static analysis.
Gilles Peskine216c44d2020-01-31 12:05:53 +0100408 * To avoid a side channel vulnerability when parsing an RSA private key,
409 read all the CRT parameters from the DER structure rather than
410 reconstructing them. Found by Alejandro Cabrera Aldaya and Billy Bob
411 Brumley. Reported and fix contributed by Jack Lloyd.
412 ARMmbed/mbed-crypto#352
Manuel Pégourié-Gonnard42b81942020-01-24 12:11:56 +0100413
Janos Follathbac9f1b2020-01-29 14:49:23 +0000414Bugfix
Gilles Peskine4cc20f62020-01-31 12:20:10 +0100415 * Fix an unchecked call to mbedtls_md() in the x509write module.
Manuel Pégourié-Gonnard6444d152020-02-19 09:31:38 +0100416 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
417 RSA keys that would later be rejected by functions expecting private
418 keys. Found by Catena cyber using oss-fuzz (issue 20467).
419 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
420 RSA keys with invalid values by silently fixing those values.
Janos Follathbac9f1b2020-01-29 14:49:23 +0000421
Jaeden Amero39e2c0e2020-01-15 16:46:46 +0000422= mbed TLS 2.16.4 branch released 2020-01-15
Hanno Becker9d8e37f2018-11-15 17:51:24 +0000423
Janos Follath1baed822019-10-25 08:53:01 +0100424Security
425 * Fix side channel vulnerability in ECDSA. Our bignum implementation is not
426 constant time/constant trace, so side channel attacks can retrieve the
427 blinded value, factor it (as it is smaller than RSA keys and not guaranteed
428 to have only large prime factors), and then, by brute force, recover the
429 key. Reported by Alejandro Cabrera Aldaya and Billy Brumley.
Andrzej Kurekf18de502019-11-12 03:34:03 -0500430 * Zeroize local variables in mbedtls_internal_aes_encrypt() and
431 mbedtls_internal_aes_decrypt() before exiting the function. The value of
432 these variables can be used to recover the last round key. To follow best
433 practice and to limit the impact of buffer overread vulnerabilities (like
434 Heartbleed) we need to zeroize them before exiting the function.
435 Issue reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihang) Bai,
436 Grant Hernandez, and Kevin Butler (University of Florida) and
437 Dave Tian (Purdue University).
Janos Follathd71f31b2019-11-11 14:15:00 +0000438 * Fix side channel vulnerability in ECDSA key generation. Obtaining precise
439 timings on the comparison in the key generation enabled the attacker to
440 learn leading bits of the ephemeral key used during ECDSA signatures and to
441 recover the private key. Reported by Jeremy Dubeuf.
Gilles Peskine86dd9502019-11-28 09:45:32 +0100442 * Catch failure of AES functions in mbedtls_ctr_drbg_random(). Uncaught
443 failures could happen with alternative implementations of AES. Bug
444 reported and fix proposed by Johan Uppman Bruce and Christoffer Lauri,
445 Sectra.
Janos Follath1baed822019-10-25 08:53:01 +0100446
Jaeden Ameroda593062019-10-02 17:59:28 +0100447Bugfix
448 * Remove redundant line for getting the bitlen of a bignum, since the variable
449 holding the returned value is overwritten a line after.
450 Found by irwir in #2377.
Gilles Peskine0e59c472019-10-18 16:40:10 +0200451 * Support mbedtls_hmac_drbg_set_entropy_len() and
452 mbedtls_ctr_drbg_set_entropy_len() before the DRBG is seeded. Before,
453 the initial seeding always reset the entropy length to the compile-time
454 default.
Jaeden Ameroda593062019-10-02 17:59:28 +0100455
Hanno Becker9d8e37f2018-11-15 17:51:24 +0000456Changes
457 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
458 from the cipher abstraction layer. Fixes #2198.
Gilles Peskine67353632019-09-30 15:25:18 +0200459 * Clarify how the interface of the CTR_DRBG and HMAC modules relates to
460 NIST SP 800-90A. In particular CTR_DRBG requires an explicit nonce
461 to achieve a 256-bit strength if MBEDTLS_ENTROPY_FORCE_SHA256 is set.
Hanno Becker9d8e37f2018-11-15 17:51:24 +0000462
Jaeden Amerofcb87112019-09-06 13:27:00 +0100463= mbed TLS 2.16.3 branch released 2019-09-06
Simon Butcher104fe532018-12-28 12:00:35 +0000464
k-stachowiak50be3582019-07-10 11:43:23 +0200465Security
466 * Fix a missing error detection in ECJPAKE. This could have caused a
467 predictable shared secret if a hardware accelerator failed and the other
468 side of the key exchange had a similar bug.
Janos Follath5f721192019-01-16 14:41:00 +0000469 * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to
470 implement blinding. Because of this for the same key and message the same
471 blinding value was generated. This reduced the effectiveness of the
472 countermeasure and leaked information about the private key through side
473 channels. Reported by Jack Lloyd.
Gilles Peskine52157832018-08-11 00:51:04 +0200474 * When writing a private EC key, use a constant size for the private
475 value, as specified in RFC 5915. Previously, the value was written
476 as an ASN.1 INTEGER, which caused the size of the key to leak
477 about 1 bit of information on average and could cause the value to be
478 1 byte too large for the output buffer.
Janos Follath5f721192019-01-16 14:41:00 +0000479
Gilles Peskine33f66ba2019-08-14 16:37:16 +0200480API Changes
481 * The new function mbedtls_ecdsa_sign_det_ext() is similar to
482 mbedtls_ecdsa_sign_det() but allows passing an external RNG for the
483 purpose of blinding.
k-stachowiak50be3582019-07-10 11:43:23 +0200484
Simon Butcher104fe532018-12-28 12:00:35 +0000485Bugfix
Simon Butcherf35bb5a2019-04-18 15:57:30 +0100486 * Fix to allow building test suites with any warning that detects unused
487 functions. Fixes #1628.
Jaeden Amero7f132cc2019-06-21 13:27:41 +0100488 * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
489 * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
490 * Fix Visual Studio Release x64 build configuration by inheriting
491 PlatformToolset from the project configuration. Fixes #1430 reported by
492 irwir.
493 * Enable Suite B with subset of ECP curves. Make sure the code compiles even
494 if some curves are not defined. Fixes #1591 reported by dbedev.
Jaeden Ameroc041b4f2019-07-05 15:43:18 +0100495 * Fix misuse of signed arithmetic in the HAVEGE module. #2598
Gilles Peskine77a29162019-08-03 14:08:46 +0200496 * Update test certificates that were about to expire. Reported by
497 Bernhard M. Wiedemann in #2357.
Gilles Peskine9ff53ff2019-08-05 11:34:11 +0200498 * Fix the build on ARMv5TE in ARM mode to not use assembly instructions
499 that are only available in Thumb mode. Fix contributed by Aurelien Jarno
500 in #2169.
Gilles Peskinef9c94b02019-07-19 17:24:55 +0200501 * Fix undefined memset(NULL) call in test_suite_nist_kw.
Gilles Peskine5bdae192019-07-19 17:26:55 +0200502 * Make NV seed test support MBEDTLS_ENTROPY_FORCE_SHA256.
Hanno Beckerda2fb422019-07-19 12:52:08 +0100503 * Fix propagation of restart contexts in restartable EC operations.
504 This could previously lead to segmentation faults in builds using an
505 address-sanitizer and enabling but not using MBEDTLS_ECP_RESTARTABLE.
Jaeden Ameroadb4fa52019-09-03 16:32:54 +0100506 * Fix memory leak in in mpi_miller_rabin(). Contributed by
507 Jens Wiklander <jens.wiklander@linaro.org> in #2363
Andy Gross3fc6f9d2019-01-30 10:25:53 -0600508 * Improve code clarity in x509_crt module, removing false-positive
509 uninitialized variable warnings on some recent toolchains (GCC8, etc).
510 Discovered and fixed by Andy Gross (Linaro), #2392.
Vikas Katariyacc9135f2019-08-15 16:32:21 +0100511 * Zero length buffer check for undefined behavior in
512 mbedtls_platform_zeroize(). Fixes ARMmbed/mbed-crypto#49.
Jaeden Ameroc3bfb202019-09-05 17:37:13 +0100513 * Fix bug in endianness conversion in bignum module. This lead to
514 functionally incorrect code on bigendian systems which don't have
515 __BYTE_ORDER__ defined. Reported by Brendan Shanks. Fixes #2622.
Simon Butcher104fe532018-12-28 12:00:35 +0000516
Jaeden Amero5ecbd142019-06-21 13:24:18 +0100517Changes
518 * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
519 suggests). #2671
Jaeden Amero7f132cc2019-06-21 13:27:41 +0100520 * Make `make clean` clean all programs always. Fixes #1862.
Jaeden Amero5ecbd142019-06-21 13:24:18 +0100521
Jaeden Ameroff36cda2019-06-11 17:27:32 +0100522= mbed TLS 2.16.2 branch released 2019-06-11
Darryl Green955db7e2019-01-07 13:05:37 +0000523
Gilles Peskine661610c2018-11-07 22:39:16 +0100524Security
525 * Make mbedtls_ecdh_get_params return an error if the second key
526 belongs to a different group from the first. Before, if an application
527 passed keys that belonged to different group, the first key's data was
528 interpreted according to the second group, which could lead to either
529 an error or a meaningless output from mbedtls_ecdh_get_params. In the
530 latter case, this could expose at most 5 bits of the private key.
531
Jaeden Amerof2357f82019-03-26 15:27:56 +0000532Bugfix
533 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
534 mbedTLS configuration only SHA-2 signed certificates are accepted.
535 This certificate is used in the demo server programs, which lead the
536 client programs to fail at the peer's certificate verification
537 due to an unacceptable hash signature. The certificate has been
538 updated to one that is SHA-256 signed. Fix contributed by
539 Illya Gerasymchuk.
540 * Fix private key DER output in the key_app_writer example. File contents
541 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
542 Christian Walther in #2239.
Jaeden Amero749c9442019-04-05 13:48:45 +0100543 * Fix potential memory leak in X.509 self test. Found and fixed by
544 Junhwan Park, #2106.
Jaeden Amero9bfcebf2019-04-05 13:53:22 +0100545 * Reduce stack usage of hkdf tests. Fixes #2195.
Jaeden Amero77027352019-04-05 14:10:02 +0100546 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Ameroda6a3c42019-04-08 11:23:50 +0100547 used with negative inputs. Found by Guido Vranken in #2404. Credit to
548 OSS-Fuzz.
Jaeden Amerof41fa482019-04-05 14:17:47 +0100549 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
550 either used both encrypt and decrypt key schedules, or which perform padding.
551 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amero0ea24a92019-04-05 14:26:20 +0100552 * Fix incorrect default port number in ssl_mail_client example's usage.
553 Found and fixed by irwir. #2337
Hanno Beckeree600342018-10-15 12:23:02 +0100554 * Add missing parentheses around parameters in the definition of the
555 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
556 in case operators binding less strongly than subtraction were used
557 for the parameter.
Jaeden Amero9cfc9ce2019-04-24 11:21:35 +0100558 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
559 sni entry parameter. Reported by inestlerode in #560.
Hanno Becker820c0212018-12-05 16:52:37 +0000560 * Add DER-encoded test CRTs to library/certs.c, allowing
561 the example programs ssl_server2 and ssl_client2 to be run
562 if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254.
Hanno Becker5549f462019-06-04 10:27:43 +0100563 * Fix missing bounds checks in X.509 parsing functions that could
564 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
565 * Fix multiple X.509 functions previously returning ASN.1 low-level error
566 codes to always wrap these codes into X.509 high level error codes before
567 returning. Fixes #2431.
Jaeden Amerof2357f82019-03-26 15:27:56 +0000568
569Changes
570 * Return from various debugging routines immediately if the
571 provided SSL context is unset.
572 * Remove dead code from bignum.c in the default configuration.
573 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
574 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
575 Contributed by Peter Kolbus (Garmin).
k-stachowiakb5f9a192019-04-29 13:00:05 +0200576 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
577 improve clarity. Fixes #2258.
Hanno Becker8d900152019-05-30 11:18:42 +0100578 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Jaeden Amerof2357f82019-03-26 15:27:56 +0000579
Jaeden Amero9f4f8ee2019-03-19 16:16:12 +0000580= mbed TLS 2.16.1 branch released 2019-03-19
Darryl Green955db7e2019-01-07 13:05:37 +0000581
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +0000582Features
583 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
Andres Amaya Garcia6882ec12018-11-26 20:57:49 +0000584 from the default list (enabled by default). See
585 https://sweet32.info/SWEET32_CCS16.pdf.
Andres Amaya Garcia5d8aade2018-10-30 18:21:41 +0000586
Darryl Green955db7e2019-01-07 13:05:37 +0000587Bugfix
588 * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined
589 when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242.
Ron Eldor822b8342018-11-25 10:38:34 +0200590 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
591 Raised as a comment in #1996.
Hanno Becker8116ef72018-10-25 12:42:08 +0100592 * Reduce the stack consumption of mbedtls_mpi_fill_random() which could
593 previously lead to a stack overflow on constrained targets.
Simon Butcher874b6042019-01-08 16:34:19 +0000594 * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions
595 in the header files, which missed the precompilation check. #971
Jeffrey Martin60269ee2019-01-15 09:03:24 -0600596 * Fix clobber list in MIPS assembly for large integer multiplication.
597 Previously, this could lead to functionally incorrect assembly being
598 produced by some optimizing compilers, showing up as failures in
599 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martin55a23e42019-01-16 09:27:11 -0600600 by Aurelien Jarno and submitted by Jeffrey Martin.
Hanno Becker47da6df2019-01-10 09:22:16 +0000601 * Fix signed-to-unsigned integer conversion warning
602 in X.509 module. Fixes #2212.
Ron Eldor8a6917d2018-11-27 10:33:38 +0200603 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
604 Fixes #2190.
Masashi Honmafbda6122018-12-28 05:40:17 +0900605 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
amisare5c0b5b52019-01-04 08:15:46 +0800606 * Remove the mbedtls namespacing from the header file, to fix a "file not found"
607 build error. Fixed by Haijun Gu #2319.
Ron Eldor5351afa2018-12-17 10:12:55 +0200608 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Peter Kolbus494ac012019-02-03 08:41:41 -0600609 * Fix false failure in all.sh when backup files exist in include/mbedtls
610 (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407.
Andres Amaya Garciab5eb21a2018-09-26 10:59:20 +0100611 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
612 mbedtls_asn1_write_bitstring().
613 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
614 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
615 correctly as trailing zeroes were not accounted for as unused bits in the
616 leading content octet. Fixes #1610.
Darryl Green955db7e2019-01-07 13:05:37 +0000617
Jaeden Amerof0f8c092019-01-30 16:09:08 +0000618Changes
619 * Include configuration file in all header files that use configuration,
620 instead of relying on other header files that they include.
621 Inserted as an enhancement for #1371
Jaeden Amero9fc7af02019-01-30 16:17:22 +0000622 * Add support for alternative CSR headers, as used by Microsoft and defined
623 in RFC 7468. Found by Michael Ernst. Fixes #767.
Andres Amaya Garciad4d55962018-10-16 22:18:53 +0100624 * Fix configuration queries in ssl-opt.h. #2030
625 * Ensure that ssl-opt.h can be run in OS X. #2029
k-stachowiak73a8a0f2019-02-05 10:04:54 +0100626 * Reduce the complexity of the timing tests. They were assuming more than the
627 underlying OS actually guarantees.
k-stachowiakb4595d22019-02-19 12:41:30 +0100628 * Re-enable certain interoperability tests in ssl-opt.sh which had previously
629 been disabled for lack of a sufficiently recent version of GnuTLS on the CI.
Andres Amaya Garcia03afdc02019-02-19 20:14:00 +0000630 * Ciphersuites based on 3DES now have the lowest priority by default when
631 they are enabled.
Jaeden Amerof0f8c092019-01-30 16:09:08 +0000632
Simon Butcher6c164e72018-12-21 10:51:51 +0000633= mbed TLS 2.16.0 branch released 2018-12-21
Gilles Peskineddffa062018-10-03 13:40:16 +0200634
Manuel Pégourié-Gonnard8a46c222018-12-11 10:46:41 +0100635Features
Manuel Pégourié-Gonnard97940982018-12-17 13:13:50 +0100636 * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation
637 of parameters in the API. This allows detection of obvious misuses of the
638 API, such as passing NULL pointers. The API of existing functions hasn't
639 changed, but requirements on parameters have been made more explicit in
640 the documentation. See the corresponding API documentation for each
641 function to see for which parameter values it is defined. This feature is
642 disabled by default. See its API documentation in config.h for additional
643 steps you have to take when enabling it.
Gilles Peskine5da05052018-09-11 18:59:55 +0200644
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100645API Changes
646 * The following functions in the random generator modules have been
647 deprecated and replaced as shown below. The new functions change
648 the return type from void to int to allow returning error codes when
649 using MBEDTLS_<MODULE>_ALT for the underlying AES or message digest
650 primitive. Fixes #1798.
651 mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret()
652 mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret()
653 * Extend ECDH interface to enable alternative implementations.
Simon Butchere0460532018-12-20 16:17:02 +0000654 * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for
655 ARIA, CAMELLIA and Blowfish. These error codes will be replaced by
656 the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA.
657 * Additional parameter validation checks have been added for the following
658 modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH,
659 ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI.
660 Where modules have had parameter validation added, existing parameter
661 checks may have changed. Some modules, such as Chacha20 had existing
662 parameter validation whereas other modules had little. This has now been
663 changed so that the same level of validation is present in all modules, and
664 that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default
665 is off. That means that checks which were previously present by default
666 will no longer be.
Manuel Pégourié-Gonnard12dce612018-12-13 09:48:40 +0100667
Gilles Peskine5da05052018-09-11 18:59:55 +0200668New deprecations
669 * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update
670 in favor of functions that can return an error code.
Gilles Peskineddffa062018-10-03 13:40:16 +0200671
Simon Butcherb3633822018-07-30 22:10:48 +0100672Bugfix
Simon Butcherdf0500d2018-09-30 12:27:26 +0100673 * Fix for Clang, which was reporting a warning for the bignum.c inline
674 assembly for AMD64 targets creating string literals greater than those
675 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Hanno Becker5e0924c2018-10-18 12:11:54 +0100676 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
677 through qemu user emulation. Reported and fix suggested by randombit
678 in #1212. Fixes #1212.
Hanno Beckera7d2fa72018-10-24 13:41:43 +0100679 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
680 This could lead to a buffer overflow, but only in case ticket authentication
681 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Amero9055a7d2018-12-06 16:09:58 +0000682 * Add explicit integer to enumeration type casts to example program
683 programs/pkey/gen_key which previously led to compilation failure
684 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Janos Follath855def12018-12-07 10:04:17 +0000685 * Fix double initialization of ECC hardware that made some accelerators
686 hang.
Simon Butcher6df8c532018-12-20 12:34:44 +0000687 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
688 of check for certificate/key matching. Reported by Attila Molnar, #507.
Simon Butcherc86993e2018-09-27 09:48:54 +0100689
Simon Butchere0460532018-12-20 16:17:02 +0000690= mbed TLS 2.14.1 branch released 2018-11-30
691
692Security
693 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
694 decryption that could lead to a Bleichenbacher-style padding oracle
695 attack. In TLS, this affects servers that accept ciphersuites based on
696 RSA decryption (i.e. ciphersuites whose name contains RSA but not
697 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
698 (University of Adelaide), Daniel Genkin (University of Michigan),
699 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
700 (University of Adelaide, Data61). The attack is described in more detail
701 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
702 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
703 via branching and memory access patterns. An attacker who could submit
704 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
705 of the decryption and not its result could nonetheless decrypt RSA
706 plaintexts and forge RSA signatures. Other asymmetric algorithms may
707 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
708 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
709 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
710 modules.
711
712API Changes
713 * The new functions mbedtls_ctr_drbg_update_ret() and
714 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
715 and mbedtls_hmac_drbg_update() respectively, but the new functions
716 report errors whereas the old functions return void. We recommend that
717 applications use the new functions.
718
Simon Butcherc1b98922018-11-19 18:31:40 +0000719= mbed TLS 2.14.0 branch released 2018-11-19
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200720
Hanno Beckerd3445da2018-11-02 09:36:45 +0000721Security
Simon Butcher681edee2018-11-07 16:25:38 +0000722 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcherb35e59d2018-11-19 15:49:26 +0000723 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher681edee2018-11-07 16:25:38 +0000724 name and the CA's subject name differed in their string encoding (e.g.,
725 one using PrintableString and the other UTF8String) or in the choice of
726 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
727 #1784.
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100728 * Fix a flawed bounds check in server PSK hint parsing. In case the
Simon Butcherb35e59d2018-11-19 15:49:26 +0000729 incoming message buffer was placed within the first 64KiB of address
Hanno Beckerdc71ef82018-10-08 13:51:38 +0100730 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
Simon Butcherb35e59d2018-11-19 15:49:26 +0000731 to trigger a memory access up to 64KiB beyond the incoming message buffer,
732 potentially leading to an application crash or information disclosure.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100733 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
734 previous settings for the number of rounds made it practical for an
735 adversary to construct non-primes that would be erroneously accepted as
736 primes with high probability. This does not have an impact on the
Simon Butcher681edee2018-11-07 16:25:38 +0000737 security of TLS, but can matter in other contexts with numbers chosen
738 potentially by an adversary that should be prime and can be validated.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100739 For example, the number of rounds was enough to securely generate RSA key
740 pairs or Diffie-Hellman parameters, but was insufficient to validate
741 Diffie-Hellman parameters properly.
742 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
743 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Beckerd3445da2018-11-02 09:36:45 +0000744
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +0200745Features
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200746 * Add support for temporarily suspending expensive ECC computations after
Simon Butcherb35e59d2018-11-19 15:49:26 +0000747 some configurable amount of operations. This is intended to be used in
748 constrained, single-threaded systems where ECC is time consuming and can
749 block other operations until they complete. This is disabled by default,
750 but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and
751 configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new
Manuel Pégourié-Gonnardf0bbd7e2018-10-15 13:22:41 +0200752 xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported
753 yet), and to existing functions in ECDH and SSL (currently only
754 implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2,
755 including client authentication).
Simon Butcher4a865ef2018-10-28 18:00:51 +0000756 * Add support for Arm CPU DSP extensions to accelerate asymmetric key
757 operations. On CPUs where the extensions are available, they can accelerate
758 MPI multiplications used in ECC and RSA cryptography. Contributed by
759 Aurelien Jarno.
Simon Butcherb35e59d2018-11-19 15:49:26 +0000760 * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS
761 signature always used a salt with the same length as the hash, and returned
762 an error if this was not possible. Now the salt size may be up to two bytes
763 shorter. This allows the library to support all hash and signature sizes
764 that comply with FIPS 186-4, including SHA-512 with a 1024-bit key.
Simon Butcher06d80cf2018-11-06 23:46:04 +0000765 * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter
766 than 256 bits limits the security of generated material to 128 bits.
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +0200767
Simon Butchere51d4b32018-11-09 19:57:53 +0000768API Changes
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000769 * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for
770 a feature that is not supported by underlying alternative
771 implementations implementing cryptographic primitives. This is useful for
772 hardware accelerators that don't implement all options or features.
Simon Butchere51d4b32018-11-09 19:57:53 +0000773
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300774New deprecations
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000775 * All module specific errors following the form
776 MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not
777 supported are deprecated and are now replaced by the new equivalent
778 platform error.
Simon Butcher681edee2018-11-07 16:25:38 +0000779 * All module specific generic hardware acceleration errors following the
Simon Butcher2ab14bb2018-11-09 20:09:33 +0000780 form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced
781 by the equivalent plaform error.
Janos Follathe0e7ddf2018-09-06 10:40:04 +0100782 * Deprecate the function mbedtls_mpi_is_prime() in favor of
783 mbedtls_mpi_is_prime_ext() which allows specifying the number of
784 Miller-Rabin rounds.
Ron Eldor6aa9fb42018-10-04 14:32:05 +0300785
Simon Butcherb3633822018-07-30 22:10:48 +0100786Bugfix
Simon Butcher2b5be1e2018-10-30 15:55:10 +0000787 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
788 application leading to a memory leak in case both
789 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
790 Fixes #2069.
Simon Butcherc86993e2018-09-27 09:48:54 +0100791 * Fix a bug in the update function for SSL ticket keys which previously
792 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
793 * Fix failure in hmac_drbg in the benchmark sample application, when
794 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Hanno Beckerf24c3362018-10-17 14:53:05 +0100795 * Fix a bug in the record decryption routine ssl_decrypt_buf()
796 which lead to accepting properly authenticated but improperly
797 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker617a3212018-10-05 09:51:36 +0100798 * Fix memory leak and freeing without initialization in the example
799 program programs/x509/cert_write. Fixes #1422.
Simon Butcher681edee2018-11-07 16:25:38 +0000800 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
801 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091.
Hanno Becker7e1f3be2018-10-15 13:20:28 +0100802 * Zeroize memory used for buffering or reassembling handshake messages
803 after use.
804 * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization
805 of sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Beckerf143a782018-11-06 17:43:16 +0000806 * Change the default string format used for various X.509 DN attributes to
807 UTF8String. Previously, the use of the PrintableString format led to
808 wildcards and non-ASCII characters being unusable in some DN attributes.
Simon Butcher681edee2018-11-07 16:25:38 +0000809 Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by
810 Thomas-Dee.
Hanno Beckere4f965d2018-10-11 10:54:45 +0100811 * Fix compilation failure for configurations which use compile time
812 replacements of standard calloc/free functions through the macros
813 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
814 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Simon Butcherc86993e2018-09-27 09:48:54 +0100815
816Changes
Simon Butcherc0514bf2018-09-26 18:07:18 +0100817 * Removed support for Yotta as a build tool.
Simon Butcherc86993e2018-09-27 09:48:54 +0100818 * Add tests for session resumption in DTLS.
Gilles Peskine604ccc62018-07-10 15:55:52 +0200819 * Close a test gap in (D)TLS between the client side and the server side:
820 test the handling of large packets and small packets on the client side
821 in the same way as on the server side.
Simon Butcherddc9e262018-10-27 18:27:41 +0100822 * Change the dtls_client and dtls_server samples to work by default over
823 IPv6 and optionally by a build option over IPv4.
Simon Butcher404aa652018-10-01 14:44:22 +0100824 * Change the use of Windows threading to use Microsoft Visual C++ runtime
825 calls, rather than Win32 API calls directly. This is necessary to avoid
826 conflict with C runtime usage. Found and fixed by irwir.
Simon Butcher681edee2018-11-07 16:25:38 +0000827 * Remember the string format of X.509 DN attributes when replicating
828 X.509 DNs. Previously, DN attributes were always written in their default
829 string format (mostly PrintableString), which could lead to CRTs being
830 created which used PrintableStrings in the issuer field even though the
831 signing CA used UTF8Strings in its subject field; while X.509 compliant,
832 such CRTs were rejected in some applications, e.g. some versions of
833 Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by
834 Thomas-Dee.
Hanno Becker0bb204c2018-10-30 10:08:33 +0000835 * Improve documentation of mbedtls_ssl_get_verify_result().
836 Fixes #517 reported by github-monoculture.
Janos Follath33329372018-09-06 10:41:33 +0100837 * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and
838 use it to reduce error probability in RSA key generation to levels mandated
839 by FIPS-186-4.
Simon Butcherc86993e2018-09-27 09:48:54 +0100840
Simon Butcher5d40f672018-09-06 16:24:48 +0100841= mbed TLS 2.13.1 branch released 2018-09-06
Simon Butcherb3633822018-07-30 22:10:48 +0100842
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100843API Changes
Hanno Beckeracef2922018-09-05 16:19:07 +0100844 * Extend the platform module with an abstraction mbedtls_platform_gmtime_r()
Hanno Becker921b76d2018-09-05 16:21:36 +0100845 whose implementation should behave as a thread-safe version of gmtime().
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100846 This allows users to configure such an implementation at compile time when
Hanno Beckeracef2922018-09-05 16:19:07 +0100847 the target system cannot be deduced automatically, by setting the option
848 MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to
849 automatically select implementations for Windows and POSIX C libraries.
Andres Amaya Garciaa7b9f152018-08-16 21:46:35 +0100850
Simon Butcherb3633822018-07-30 22:10:48 +0100851Bugfix
Andres Amaya Garcia8c9a6202018-09-05 11:30:28 +0100852 * Fix build failures on platforms where only gmtime() is available but
853 neither gmtime_r() nor gmtime_s() are present. Fixes #1907.
Simon Butcherb3633822018-07-30 22:10:48 +0100854
Simon Butcher4d075cd2018-08-31 15:59:10 +0100855= mbed TLS 2.13.0 branch released 2018-08-31
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100856
k-stachowiak21feae52018-07-09 14:42:35 +0200857Security
k-stachowiak6ca436a2018-07-16 12:20:10 +0200858 * Fix an issue in the X.509 module which could lead to a buffer overread
859 during certificate extensions parsing. In case of receiving malformed
860 input (extensions length field equal to 0), an illegal read of one byte
861 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak21feae52018-07-09 14:42:35 +0200862
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200863Features
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200864 * Add support for fragmentation of outgoing DTLS handshake messages. This
865 is controlled by the maximum fragment length as set locally or negotiated
Manuel Pégourié-Gonnardf2f1d402018-08-21 09:53:22 +0200866 with the peer, as well as by a new per-connection MTU option, set using
Manuel Pégourié-Gonnard6e7aaca2018-08-20 10:37:23 +0200867 mbedtls_ssl_set_mtu().
Manuel Pégourié-Gonnardb8eec192018-08-20 09:34:02 +0200868 * Add support for auto-adjustment of MTU to a safe value during the
869 handshake when flights do not get through (RFC 6347, section 4.1.1.1,
870 last paragraph).
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100871 * Add support for packing multiple records within a single datagram,
872 enabled by default.
Hanno Becker02f6f5a2018-08-28 12:54:27 +0100873 * Add support for buffering out-of-order handshake messages in DTLS.
Hanno Beckeraa249372018-08-22 10:27:13 +0100874 The maximum amount of RAM used for this can be controlled by the
875 compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined
876 in mbedtls/config.h.
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100877
878API Changes
Hanno Becker1841b0a2018-08-24 11:13:57 +0100879 * Add function mbedtls_ssl_set_datagram_packing() to configure
Hanno Beckerd87a59c2018-08-14 16:34:55 +0100880 the use of datagram packing (enabled by default).
Manuel Pégourié-Gonnard01ec4af2017-09-21 13:16:52 +0200881
Gilles Peskine104d8582018-06-27 10:57:33 +0200882Bugfix
Simon Butcherb5afb972018-08-31 11:59:56 +0100883 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
884 failure in the function could lead to other buffers being leaked.
Gilles Peskine104d8582018-06-27 10:57:33 +0200885 * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if
886 MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890
Jaeden Amerof48163a2018-08-10 10:49:10 +0100887 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
888 Fix contributed by Espressif Systems.
Ron Eldor3f38cf72018-06-21 16:40:24 +0300889 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor84e62f82018-06-28 11:09:09 +0300890 This improves compliance to RFC 4492, and as a result, solves
891 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Simon Butcherb5afb972018-08-31 11:59:56 +0100892 * Replace printf with mbedtls_printf in the ARIA module. Found by
893 TrinityTonic in #1908.
Hanno Becker9dc3be72018-08-14 15:22:05 +0100894 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
Hanno Becker361f2542018-08-13 16:36:58 +0100895 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckereb2b15a2018-08-17 09:47:22 +0100896 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
897 with TLS versions 1.1 and earlier when the server requested authentication
898 without providing a list of CAs. This was due to an overly strict bounds
899 check in parsing the CertificateRequest message,
900 introduced in Mbed TLS 2.12.0. Fixes #1954.
Hanno Becker44814642018-08-03 09:53:48 +0100901 * Fix a miscalculation of the maximum record expansion in
902 mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites,
903 or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914.
Simon Butcherb5afb972018-08-31 11:59:56 +0100904 * Fix undefined shifts with negative values in certificates parsing
905 (found by Catena cyber using oss-fuzz)
Hanno Beckera70fb952017-10-08 16:13:03 +0100906 * Fix memory leak and free without initialization in pk_encrypt
907 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcherb5afb972018-08-31 11:59:56 +0100908 * Remove redundant else statement. Raised by irwir. Fixes #1776.
Gilles Peskine104d8582018-06-27 10:57:33 +0200909
Jaeden Amero372b50b2018-08-10 10:56:31 +0100910Changes
911 * Copy headers preserving timestamps when doing a "make install".
912 Contributed by xueruini.
Jaeden Amero03bd4842018-08-10 11:17:14 +0100913 * Allow the forward declaration of public structs. Contributed by Dawid
914 Drozd. Fixes #1215 raised by randombit.
Jaeden Amerod8f416982018-08-10 11:23:15 +0100915 * Improve compatibility with some alternative CCM implementations by using
916 CCM test vectors from RAM.
Hanno Beckerf1035422018-08-16 16:07:27 +0100917 * Add support for buffering of out-of-order handshake messages.
Janos Follath08a4aeb2018-08-06 14:20:15 +0100918 * Add warnings to the documentation of the HKDF module to reduce the risk
919 of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand()
920 functions. Fixes #1775. Reported by Brian J. Murray.
921
Gilles Peskine5bdb6712018-03-22 21:34:15 +0100922= mbed TLS 2.12.0 branch released 2018-07-25
923
Gilles Peskine104d8582018-06-27 10:57:33 +0200924Security
925 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
926 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
927 partially recover the plaintext of messages under some conditions by
928 exploiting timing measurements. With DTLS, the attacker could perform
929 this recovery by sending many messages in the same connection. With TLS
930 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
931 worked if the same secret (for example a HTTP Cookie) has been repeatedly
932 sent over connections manipulated by the attacker. Connections using GCM
933 or CCM instead of CBC, using hash sizes other than SHA-384, or using
934 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
935 caused by a miscalculation (for SHA-384) in a countermeasure to the
936 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
937 Shamir.
Manuel Pégourié-Gonnard1cc1fb02018-06-28 12:10:27 +0200938 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
939 1.2, that allowed a local attacker, able to execute code on the local
940 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200941 plaintext of messages under some conditions by using a cache attack
Antonin Décimod5f47592019-01-23 15:24:37 +0100942 targeting an internal MD/SHA buffer. With TLS or if
Manuel Pégourié-Gonnard830ce112018-07-11 18:27:08 +0200943 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
944 the same secret (for example a HTTP Cookie) has been repeatedly sent over
945 connections manipulated by the attacker. Connections using GCM or CCM
946 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
947 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnard7b420302018-06-28 10:38:35 +0200948 * Add a counter-measure against a vulnerability in TLS ciphersuites based
949 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
950 execute code on the local machine as well as manipulate network packets,
951 to partially recover the plaintext of messages under some conditions (see
952 previous entry) by using a cache attack targeting the SSL input record
953 buffer. Connections using GCM or CCM instead of CBC or using
954 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
955 Eyal Ronen and Adi Shamir.
Gilles Peskine104d8582018-06-27 10:57:33 +0200956
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200957Features
958 * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200959 authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100960 by Daniel King.
Manuel Pégourié-Gonnard1f092b42018-06-19 12:48:24 +0200961 * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905.
Simon Butcher231d7e52018-07-10 11:56:19 +0100962 * Add platform support for the Haiku OS. (https://www.haiku-os.org).
963 Contributed by Augustin Cavalier.
Simon Butcher00af4472018-07-10 15:35:43 +0100964 * Make the receive and transmit buffers independent sizes, for situations
965 where the outgoing buffer can be fixed at a smaller size than the incoming
966 buffer, which can save some RAM. If buffer lengths are kept equal, there
967 is no functional difference. Contributed by Angus Gratton, and also
968 independently contributed again by Paul Sokolovsky.
Ron Eldor9cf0d532018-07-15 09:34:35 +0300969 * Add support for key wrapping modes based on AES as defined by
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100970 NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649.
Manuel Pégourié-Gonnardce8314f2018-05-03 12:49:58 +0200971
Simon Butcher9e02b972018-06-28 11:56:57 +0100972Bugfix
973 * Fix the key_app_writer example which was writing a leading zero byte which
974 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
niisatob7d39db2018-06-25 20:44:57 +0900975 * Fix compilation error on C++, because of a variable named new.
niisato164b9cd2018-06-25 20:47:05 +0900976 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcher1d97cab2018-06-28 12:06:16 +0100977 * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100978 contributed by tabascoeye.
Andres Amaya Garciaa562c262017-07-11 14:39:30 +0100979 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
980 return value. Found by @davidwu2000. #839
Simon Butcher1ab9b572018-06-28 12:10:56 +0100981 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
982 Philippe Antoine. Fixes #1623.
Simon Butcher05fa46e2018-07-02 12:00:54 +0100983 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
984 by Brendan Shanks. Part of a fix for #992.
Ron Eldorda2a3122018-06-17 14:51:59 +0300985 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
986 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcherf11a7cd2018-07-25 17:26:56 +0100987 * Added length checks to some TLS parsing functions. Found and fixed by
988 Philippe Antoine from Catena cyber. #1663.
Simon Butcher6c344422018-06-24 16:20:56 +0100989 * Fix the inline assembly for the MPI multiply helper function for i386 and
990 i386 with SSE2. Found by László Langó. Fixes #1550
Ron Eldor6332e362017-10-01 17:11:54 +0300991 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldor6fd941f2017-05-14 16:17:33 +0300992 the `#include` in the header files. Resolves #857
Simon Butcherecb635e2018-07-24 10:03:41 +0100993 * Fix compiler warning of 'use before initialisation' in
994 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
995 Drozd. #1098
Simon Butcher05330542018-07-24 12:54:15 +0100996 * Fix decryption for zero length messages (which contain all padding) when a
997 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
998 such a message was wrongly reported as an invalid record and therefore lead
999 to the connection being terminated. Seen most often with OpenSSL using
1000 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
1001 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia81f06332018-07-04 10:01:39 +01001002 * Fix ssl_client2 example to send application data with 0-length content
1003 when the request_size argument is set to 0 as stated in the documentation.
1004 Fixes #1833.
Simon Butcherf11a7cd2018-07-25 17:26:56 +01001005 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
1006 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcher2c929492018-07-24 17:20:17 +01001007 * Fix build using -std=c99. Fixed by Nick Wilson.
Simon Butcher9e02b972018-06-28 11:56:57 +01001008
Simon Butcher9fa21bf2018-06-27 10:50:58 +01001009Changes
Simon Butcherf11a7cd2018-07-25 17:26:56 +01001010 * Fail when receiving a TLS alert message with an invalid length, or invalid
1011 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
1012 * Change the default behaviour of mbedtls_hkdf_extract() to return an error
1013 when calling with a NULL salt and non-zero salt_len. Contributed by
1014 Brian J Murray
Simon Butcher9fa21bf2018-06-27 10:50:58 +01001015 * Change the shebang line in Perl scripts to look up perl in the PATH.
1016 Contributed by fbrosson.
Nicholas Wilson512b4ee2017-12-05 12:07:33 +00001017 * Allow overriding the time on Windows via the platform-time abstraction.
1018 Fixed by Nick Wilson.
1019 * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson.
Simon Butcher9fa21bf2018-06-27 10:50:58 +01001020
Manuel Pégourié-Gonnard823c9152018-07-02 12:05:49 +02001021= mbed TLS 2.11.0 branch released 2018-06-18
1022
1023Features
Simon Butcher4ed38802018-06-12 17:35:06 +01001024 * Add additional block mode, OFB (Output Feedback), to the AES module and
1025 cipher abstraction module.
1026 * Implement the HMAC-based extract-and-expand key derivation function
1027 (HKDF) per RFC 5869. Contributed by Thomas Fossati.
1028 * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4.
Jaeden Amerof4474e72018-05-23 14:21:02 +01001029 * Add support for the XTS block cipher mode with AES (AES-XTS).
1030 Contributed by Aorimn in pull request #414.
Gilles Peskineb44692f2018-04-24 12:18:19 +02001031 * In TLS servers, support offloading private key operations to an external
1032 cryptoprocessor. Private key operations can be asynchronous to allow
1033 non-blocking operation of the TLS server stack.
Simon Butcherebe23ed2018-06-12 16:46:45 +01001034
Simon Butcher601144e2018-06-12 17:04:58 +01001035Bugfix
Simon Butcher4ed38802018-06-12 17:35:06 +01001036 * Fix the cert_write example to handle certificates signed with elliptic
1037 curves as well as RSA. Fixes #777 found by dbedev.
Simon Butchere5cd8682018-06-14 10:30:19 +01001038 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
1039 used by user applications. Found and fixed by Fabio Alessandrelli.
Simon Butcher600c5e62018-06-14 08:58:59 +01001040 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
1041 Reported by rahmanih in #683
Simon Butcher925568a2018-06-18 11:54:44 +01001042 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcher4ed38802018-06-12 17:35:06 +01001043
1044Changes
1045 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcherb6a5bff2018-06-18 11:51:36 +01001046 * Changed the Clang parameters used in the CMake build files to work for
1047 versions later than 3.6. Versions of Clang earlier than this may no longer
1048 work. Fixes #1072
Manuel Pégourié-Gonnard171a4812017-05-15 17:23:37 +02001049
Simon Butcherd5a09f12018-06-06 14:47:47 +01001050= mbed TLS 2.10.0 branch released 2018-06-06
Gilles Peskine5bdb6712018-03-22 21:34:15 +01001051
Manuel Pégourié-Gonnard08d1e912018-02-27 12:43:35 +01001052Features
1053 * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites
1054 (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h
1055
Gilles Peskine80aa3b82018-04-04 10:33:45 +02001056API Changes
Andres Amaya Garcia19624052018-03-08 20:06:03 +00001057 * Extend the platform module with a util component that contains
1058 functionality shared by multiple Mbed TLS modules. At this stage
1059 platform_util.h (and its associated platform_util.c) only contain
1060 mbedtls_platform_zeroize(), which is a critical function from a security
1061 point of view. mbedtls_platform_zeroize() needs to be regularly tested
1062 against compilers to ensure that calls to it are not removed from the
1063 output binary as part of redundant code elimination optimizations.
1064 Therefore, mbedtls_platform_zeroize() is moved to the platform module to
1065 facilitate testing and maintenance.
Hanno Becker2bd57572018-03-28 14:52:35 +01001066
Simon Butcherd72700a2018-06-01 19:11:55 +01001067Bugfix
1068 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
1069 build to fail. Found by zv-io. Fixes #1651.
1070
Gilles Peskineb2f09c32018-03-21 12:38:00 +01001071Changes
1072 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Moran Pekera64fba42018-02-25 13:29:03 +02001073 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
1074 TrinityTonic. #1359.
Gilles Peskineb2f09c32018-03-21 12:38:00 +01001075
Jaeden Amero7d7bad62018-04-27 13:07:13 +01001076= mbed TLS 2.9.0 branch released 2018-04-30
Ron Eldorfb46c322016-12-16 16:15:56 +02001077
Simon Butcherf85c90a2017-07-27 15:11:52 +01001078Security
Simon Butcherb03120a2018-04-30 16:40:25 +01001079 * Fix an issue in the X.509 module which could lead to a buffer overread
1080 during certificate validation. Additionally, the issue could also lead to
1081 unnecessary callback checks being made or to some validation checks to be
1082 omitted. The overread could be triggered remotely, while the other issues
1083 would require a non DER-compliant certificate to be correctly signed by a
1084 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
1085 luocm. Fixes #825.
1086 * Fix the buffer length assertion in the ssl_parse_certificate_request()
1087 function which led to an arbitrary overread of the message buffer. The
1088 overreads could be caused by receiving a malformed message at the point
1089 where an optional signature algorithms list is expected when the signature
1090 algorithms section is too short. In builds with debug output, the overread
1091 data is output with the debug data.
Andrzej Kurekb7a18c02018-04-25 05:25:30 -04001092 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcherb03120a2018-04-30 16:40:25 +01001093 which could potentially lead to the client accepting a ciphersuite it didn't
1094 offer or a ciphersuite that cannot be used with the TLS or DTLS version
1095 chosen by the server. This could lead to corruption of internal data
1096 structures for some configurations.
Gilles Peskine5bdb6712018-03-22 21:34:15 +01001097
Gilles Peskine15ad5792018-03-22 22:21:55 +01001098Features
Simon Butcherb03120a2018-04-30 16:40:25 +01001099 * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES
1100 tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB.
1101 Suggested and contributed by jkivilin in pull request #394.
Gilles Peskine15ad5792018-03-22 22:21:55 +01001102 * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and
1103 ECDH primitive functions (mbedtls_ecdh_gen_public(),
1104 mbedtls_ecdh_compute_shared()) are supported for now. Contributed by
Simon Butchere6a2a1a2018-05-01 13:57:53 +01001105 Nicholas Wilson in pull request #348.
Hanno Becker371f31c2017-06-07 15:56:54 +01001106
1107API Changes
Simon Butcherb03120a2018-04-30 16:40:25 +01001108 * Extend the public API with the function of mbedtls_net_poll() to allow user
1109 applications to wait for a network context to become ready before reading
1110 or writing.
1111 * Add function mbedtls_ssl_check_pending() to the public API to allow
1112 a check for whether more more data is pending to be processed in the
1113 internal message buffers.
Gilles Peskine557e77d2018-04-04 09:18:11 +02001114 This function is necessary to determine when it is safe to idle on the
1115 underlying transport in case event-driven IO is used.
Hanno Becker371f31c2017-06-07 15:56:54 +01001116
Andres AGee7157e2016-12-07 10:25:19 +00001117Bugfix
Simon Butcherb03120a2018-04-30 16:40:25 +01001118 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine08185402018-03-22 21:50:48 +01001119 contributed by Brian J Murray and David Brown.
Gilles Peskine51d93942018-03-23 01:42:44 +01001120 * Add missing dependencies in test suites that led to build failures
1121 in configurations that omit certain hashes or public-key algorithms.
1122 Fixes #1040.
Jaeden Amerob6049602018-03-26 18:25:58 +01001123 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
1124 #1353
Gilles Peskinef69ad5a2018-03-27 23:08:53 +02001125 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcherb03120a2018-04-30 16:40:25 +01001126 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
1127 Deomid Ryabkov. Fixes #1299, #1475.
1128 * Fix the Makefile build process for building shared libraries on Mac OS X.
1129 Fixed by mnacamura.
Jethro Beekmand2df9362018-02-16 13:11:04 -08001130 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcherb03120a2018-04-30 16:40:25 +01001131 unable to parse keys which had only the optional parameters field of the
Jethro Beekmancb122372018-04-11 08:40:38 -07001132 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
Simon Butcherb03120a2018-04-30 16:40:25 +01001133 * Return the plaintext data more quickly on unpadded CBC decryption, as
1134 stated in the mbedtls_cipher_update() documentation. Contributed by
1135 Andy Leiserson.
Gilles Peskineb9e86962018-04-04 09:20:59 +02001136 * Fix overriding and ignoring return values when parsing and writing to
1137 a file in pk_sign program. Found by kevlut in #1142.
Hanno Beckerc53826b2017-10-12 07:46:41 +01001138 * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations
1139 where data needs to be fetched from the underlying transport in order
1140 to make progress. Previously, this error code was also occasionally
1141 returned when unexpected messages were being discarded, ignoring that
1142 further messages could potentially already be pending to be processed
Simon Butcherb03120a2018-04-30 16:40:25 +01001143 in the internal buffers; these cases led to deadlocks when event-driven
1144 I/O was used. Found and reported by Hubert Mis in #772.
Gilles Peskinef2b76cd2018-04-19 17:41:39 +02001145 * Fix buffer length assertions in the ssl_parse_certificate_request()
1146 function which leads to a potential one byte overread of the message
1147 buffer.
Andrzej Kurek5462e022018-04-20 07:58:53 -04001148 * Fix invalid buffer sizes passed to zlib during record compression and
1149 decompression.
Simon Butchere6a2a1a2018-05-01 13:57:53 +01001150 * Fix the soversion of libmbedcrypto to match the soversion of the
1151 maintained 2.7 branch. The soversion was increased in Mbed TLS
1152 version 2.7.1 to reflect breaking changes in that release, but the
1153 increment was missed in 2.8.0 and later releases outside of the 2.7 branch.
Gilles Peskine08185402018-03-22 21:50:48 +01001154
Gilles Peskine5bdb6712018-03-22 21:34:15 +01001155Changes
1156 * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub.
Simon Butcherb03120a2018-04-30 16:40:25 +01001157 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
1158 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskine51d93942018-03-23 01:42:44 +01001159 * Improve testing in configurations that omit certain hashes or
1160 public-key algorithms. Includes contributions by Gert van Dijk.
1161 * Improve negative testing of X.509 parsing.
Andres Amaya Garcia768bbaf2018-03-21 15:05:12 +00001162 * Do not define global mutexes around readdir() and gmtime() in
1163 configurations where the feature is disabled. Found and fixed by Gergely
1164 Budai.
Simon Butcherb03120a2018-04-30 16:40:25 +01001165 * Harden the function mbedtls_ssl_config_free() against misuse, so that it
1166 doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and
1167 instead incorrectly manipulates the configuration structure directly.
1168 Found and fix submitted by junyeonLEE in #1220.
Andres Amaya Garciacb47a792018-03-27 21:19:50 +01001169 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
1170 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
1171 without PBES2. Fixed by Marcos Del Sol Vives.
Manuel Pégourié-Gonnardfff308e2018-03-28 11:13:05 +02001172 * Add the order of the base point as N in the mbedtls_ecp_group structure
1173 for Curve25519 (other curves had it already). Contributed by Nicholas
1174 Wilson #481
Jaeden Amero4ba87fc2018-03-29 11:01:38 +01001175 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
1176 Krylov.
Darryl Greeneea1c4e2018-03-29 16:05:44 +01001177 * Improve the documentation of mbedtls_ssl_write(). Suggested by
1178 Paul Sokolovsky in #1356.
Simon Butcherb03120a2018-04-30 16:40:25 +01001179 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garciad1b17882018-03-27 19:14:24 +01001180 letter must not be prefixed by '-', such as LLVM. Found and fixed by
1181 Alex Hixon.
Andres Amaya Garciaea5a8a42018-03-25 23:57:09 +01001182 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garciad1b17882018-03-27 19:14:24 +01001183 environment variable when using the project makefiles.
Gilles Peskine4e4be7c2018-03-21 16:29:03 +01001184 * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution
Gilles Peskine092bf3d2018-04-01 12:43:48 +02001185 by Alexey Skalozub in #405.
Gilles Peskinea09453f2018-04-04 09:14:12 +02001186 * In the SSL module, when f_send, f_recv or f_recv_timeout report
1187 transmitting more than the required length, return an error. Raised by
1188 Sam O'Connor in #1245.
Gilles Peskinec96ccf42018-03-31 22:57:03 +02001189 * Improve robustness of mbedtls_ssl_derive_keys against the use of
1190 HMAC functions with non-HMAC ciphersuites. Independently contributed
1191 by Jiayuan Chen in #1377. Fixes #1437.
Simon Butcherb03120a2018-04-30 16:40:25 +01001192 * Improve security of RSA key generation by including criteria from
1193 FIPS 186-4. Contributed by Jethro Beekman. #1380
Gilles Peskine81021ca2018-04-19 20:59:06 +02001194 * Declare functions in header files even when an alternative implementation
1195 of the corresponding module is activated by defining the corresponding
1196 MBEDTLS_XXX_ALT macro. This means that alternative implementations do
1197 not need to copy the declarations, and ensures that they will have the
1198 same API.
Andrzej Kurekaca09c72018-04-13 05:18:08 -04001199 * Add platform setup and teardown calls in test suites.
Gilles Peskine5bdb6712018-03-22 21:34:15 +01001200
Jaeden Amero8be0e6d2018-03-16 16:25:12 +00001201= mbed TLS 2.8.0 branch released 2018-03-16
Gilles Peskine27b07542018-02-14 14:07:48 +01001202
Gilles Peskine04f9bd02018-02-22 15:22:44 +01001203Default behavior changes
1204 * The truncated HMAC extension now conforms to RFC 6066. This means
1205 that when both sides of a TLS connection negotiate the truncated
1206 HMAC extension, Mbed TLS can now interoperate with other
1207 compliant implementations, but this breaks interoperability with
1208 prior versions of Mbed TLS. To restore the old behavior, enable
1209 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
1210 config.h. Found by Andreas Walz (ivESK, Offenburg University of
1211 Applied Sciences).
1212
Hanno Becker7dc832b2017-11-16 17:39:34 +00001213Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +01001214 * Fix implementation of the truncated HMAC extension. The previous
1215 implementation allowed an offline 2^80 brute force attack on the
1216 HMAC key of a single, uninterrupted connection (with no
1217 resumption of the session).
Gilles Peskine553a06f2018-03-13 17:15:34 +01001218 * Verify results of RSA private key operations to defend
1219 against Bellcore glitch attack.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +01001220 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
1221 a crash on invalid input.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +01001222 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
1223 crash on invalid input.
Manuel Pégourié-Gonnardfd3e4fb2018-03-13 11:53:30 +01001224 * Fix CRL parsing to reject CRLs containing unsupported critical
1225 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Hanno Becker7dc832b2017-11-16 17:39:34 +00001226
Antonio Quartulli12ccef22017-12-20 07:03:55 +08001227Features
1228 * Extend PKCS#8 interface by introducing support for the entire SHA
1229 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine1d80a672018-02-14 11:33:30 +01001230 This allows reading encrypted PEM files produced by software that
1231 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
1232 OpenVPN Inc. Fixes #1339
Gilles Peskine3dabd6a2018-02-14 17:19:41 +01001233 * Add support for public keys encoded in PKCS#1 format. #1122
Antonio Quartulli12ccef22017-12-20 07:03:55 +08001234
Hanno Beckercf092b22018-03-06 14:23:38 +00001235New deprecations
1236 * Deprecate support for record compression (configuration option
1237 MBEDTLS_ZLIB_SUPPORT).
1238
Gilles Peskine27b07542018-02-14 14:07:48 +01001239Bugfix
1240 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
1241 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +01001242 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +02001243 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
1244 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskine1bf61232018-02-27 08:37:52 +01001245 In the context of SSL, this resulted in handshake failure. Reported by
1246 daniel in the Mbed TLS forum. #1351
Jaeden Ameroc5d08f82018-02-21 13:32:39 +00001247 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskineb4c571e2018-03-11 00:44:14 +01001248 * Fix setting version TLSv1 as minimal version, even if TLS 1
1249 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
1250 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
1251 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +03001252 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
1253 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +03001254 Nick Wilson on issue #355
Gilles Peskine08af5382018-03-11 00:15:56 +01001255 * In test_suite_pk, pass valid parameters when testing for hash length
itayzafrir693a1d92018-02-26 12:02:10 +02001256 overflow. #1179
Gilles Peskinea31d8202018-03-12 23:45:08 +01001257 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
1258 by Guido Vranken. #639
Gilles Peskine3ff4a072018-03-12 23:54:20 +01001259 * Log correct number of ciphersuites used in Client Hello message. #918
Gilles Peskine5f193282018-03-13 17:18:06 +01001260 * Fix X509 CRT parsing that would potentially accept an invalid tag when
1261 parsing the subject alternative names.
Krzysztof Stachowiak00bbf572018-03-14 11:14:13 +01001262 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
1263 that could cause a key exchange to fail on valid data.
Krzysztof Stachowiak7fa1ae72018-03-13 17:17:38 +01001264 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
1265 could cause a key exchange to fail on valid data.
Gilles Peskine8db3efb2018-02-21 19:16:20 +01001266 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
1267 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +01001268 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
1269 Found through fuzz testing.
Gilles Peskine27b07542018-02-14 14:07:48 +01001270
1271Changes
1272 * Fix tag lengths and value ranges in the documentation of CCM encryption.
1273 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +01001274 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskinedf298682018-02-14 15:49:54 +01001275 * Remove support for the library reference configuration for picocoin.
Gilles Peskinebb2565c2018-02-21 17:59:40 +01001276 * MD functions deprecated in 2.7.0 are no longer inline, to provide
1277 a migration path for those depending on the library's ABI.
Gilles Peskine9c4f4032017-05-29 14:46:36 +02001278 * Clarify the documentation of mbedtls_ssl_setup.
Gilles Peskine6dc4a312018-03-13 00:13:06 +01001279 * Use (void) when defining functions with no parameters. Contributed by
1280 Joris Aerts. #678
Gilles Peskine27b07542018-02-14 14:07:48 +01001281
Simon Butcher55fc4e02018-02-05 01:09:13 +00001282= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001283
Gilles Peskine28a0c722017-10-17 19:01:38 +02001284Security
Simon Butcher55fc4e02018-02-05 01:09:13 +00001285 * Fix a heap corruption issue in the implementation of the truncated HMAC
1286 extension. When the truncated HMAC extension is enabled and CBC is used,
1287 sending a malicious application packet could be used to selectively corrupt
1288 6 bytes on the peer's heap, which could potentially lead to crash or remote
1289 code execution. The issue could be triggered remotely from either side in
1290 both TLS and DTLS. CVE-2018-0488
1291 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
1292 for the key size, which could potentially lead to crash or remote code
1293 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
1294 Qualcomm Technologies Inc. CVE-2018-0487
1295 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
1296 zeros.
1297 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
1298 64 KiB to the address of the SSL buffer and causing a wrap around.
1299 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +01001300 default enabled) maximum fragment length extension is disabled in the
1301 config and the application data buffer passed to mbedtls_ssl_write
1302 is larger than the internal message buffer (16384 bytes by default), the
1303 latter overflows. The exploitability of this issue depends on whether the
1304 application layer can be forced into sending such large packets. The issue
1305 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +00001306 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
1307 Fixes #707.
1308 * Add a provision to prevent compiler optimizations breaking the time
1309 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +01001310 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +01001311 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +03001312 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
1313 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +01001314 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
1315 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001316 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
1317 data. Previously, trailing zero bytes were detected and omitted for the
1318 sake of saving memory, but potentially leading to slight timing
1319 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +01001320 * Wipe stack buffer temporarily holding EC private exponent
1321 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001322 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +01001323 (server-side). Could result in application crash, but only if an ALPN
1324 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +01001325 * Change default choice of DHE parameters from untrustworthy RFC 5114
1326 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
1327 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +02001328
Gilles Peskineb04e2c32017-09-29 15:45:12 +02001329Features
1330 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +01001331 * The selftest program can execute a subset of the tests based on command
1332 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +02001333 * New unit tests for timing. Improve the self-test to be more robust
1334 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +01001335 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +00001336 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +01001337 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +01001338 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +03001339 * Add support for alternative implementations for ECDSA, controlled by new
1340 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
1341 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +03001342 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +03001343 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +03001344 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +00001345 * Add support for alternative implementation of ECDH, controlled by the
1346 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +03001347 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +03001348 The following functions from the ECDH module can be replaced
1349 with an alternative implementation:
1350 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +00001351 * Add support for alternative implementation of ECJPAKE, controlled by
1352 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001353 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +02001354
Hanno Beckera47023e2017-12-22 17:08:03 +00001355API Changes
1356 * Extend RSA interface by multiple functions allowing structure-
1357 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +00001358 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +00001359 up RSA contexts from partial key material and having them completed to the
1360 needs of the implementation automatically. This allows to setup private RSA
1361 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
1362 purpose or CRT and/or blinding.
1363 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
1364 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +01001365 * The following functions in the message digest modules (MD2, MD4, MD5,
1366 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
1367 The new functions change the return type from void to int to allow
1368 returning error codes when using MBEDTLS_<MODULE>_ALT.
1369 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
1370 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
1371 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +01001372 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +02001373
Ron Eldor73a38172017-10-03 15:58:26 +03001374New deprecations
1375 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +00001376 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +01001377 * Direct manipulation of structure fields of RSA contexts is deprecated.
1378 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +00001379 * Deprecate usage of message digest functions that return void
1380 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
1381 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
1382 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
1383 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +01001384 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
1385 parameters from RFC 3526 or the newly added parameters from RFC 7919.
1386 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
1387 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
1388 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001389 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
1390 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +01001391 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001392
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001393Bugfix
1394 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
1395 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +01001396 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
Simon Butcherb03120a2018-04-30 16:40:25 +01001397 Found by projectgus and Jethro Beekman, #836.
Simon Butcher16373a52017-10-02 19:12:54 +01001398 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +03001399 * Parse signature algorithm extension when renegotiating. Previously,
1400 renegotiated handshakes would only accept signatures using SHA-1
1401 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +00001402 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
1403 dates on leap years with 100 and 400 intervals are handled correctly. Found
1404 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +02001405 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
1406 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +01001407 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
1408 Found independently by Florian in the mbed TLS forum and by Mishamax.
1409 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +01001410 * Fix variable used before assignment compilation warnings with IAR
1411 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +00001412 * Fix unchecked return codes from AES, DES and 3DES functions in
1413 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
1414 If a call to one of the functions of the cryptographic primitive modules
1415 failed, the error may not be noticed by the function
1416 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
1417 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +01001418 * Include configuration file in md.h, to fix compilation warnings.
1419 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +01001420 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
1421 writing routines that prevented these functions to work with alternative
1422 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +01001423 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
1424 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +01001425 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +00001426 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +01001427 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001428 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +01001429 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001430 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +00001431 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +01001432 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +01001433 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +01001434 * Add size-checks for record and handshake message content, securing
1435 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +03001436 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
1437 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +01001438 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001439 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001440 * Fix possible memory leaks in mbedtls_gcm_self_test().
1441 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +00001442 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
1443 RSA test suite where the failure of CTR DRBG initialization lead to
1444 freeing an RSA context and several MPI's without proper initialization
1445 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +01001446 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +01001447 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
1448 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001449 * Fix an issue in the cipher decryption with the mode
1450 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
1451 Note, this padding mode is not used by the TLS protocol. Found and fixed by
1452 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +01001453 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
1454 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
1455 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
1456 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +01001457 structure. Do not assume that zeroizing a context is a correct way to
1458 reset it. Found independently by ccli8 on Github.
1459 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +00001460 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
1461 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +01001462
1463Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +00001464 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +01001465 and the message digest. Further, allow enabling/disabling of authority
1466 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +00001467 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
1468 particular, don't require P,Q if neither CRT nor blinding are
1469 used. Reported and fix proposed independently by satur9nine and sliai
1470 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001471 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +01001472 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
1473 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +01001474 * Update all internal usage of deprecated message digest functions to the
1475 new ones with return codes. In particular, this modifies the
1476 mbedtls_md_info_t structure. Propagate errors from these functions
1477 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +00001478 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +01001479 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
1480 modules where the software implementation can be replaced by a hardware
1481 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +01001482 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
1483 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001484
Simon Butcher72ea31b2017-08-10 11:51:16 +01001485= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +02001486
Simon Butcherb060cc22017-07-28 01:04:34 +01001487Security
Simon Butcher01971d02017-08-10 10:48:01 +01001488 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherf85c90a2017-07-27 15:11:52 +01001489 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
1490 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +01001491 (default: 8) intermediates, even when it was not trusted. This could be
1492 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +01001493 (the default), the handshake was correctly aborted).
1494 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +01001495 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
1496 Found by Laurent Simon.
Simon Butcherf85c90a2017-07-27 15:11:52 +01001497
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001498Features
1499 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia24f36412017-07-12 11:27:05 +01001500 and the context struct mbedtls_platform_context to perform
1501 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia5478bc72017-07-18 10:24:26 +01001502 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +01001503 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +01001504 some embedded environments to provide a means of initialising underlying
1505 cryptographic acceleration hardware.
Andres Amaya Garcia2187e032017-07-07 13:19:13 +01001506
Simon Butcherab670432017-07-20 12:33:41 +02001507API Changes
1508 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
1509 API consistent with mbed TLS 2.5.0. Specifically removed the inline
1510 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001511 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
1512 by James Cowgill. #978
Simon Butcherf85c90a2017-07-27 15:11:52 +01001513 * Certificate verification functions now set flags to -1 in case the full
1514 chain was not verified due to an internal error (including in the verify
1515 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +01001516 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherf85c90a2017-07-27 15:11:52 +01001517 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +01001518 a fatal error in the verify callback.
Simon Butcherab670432017-07-20 12:33:41 +02001519
Ron Eldore2efaea2016-12-16 16:15:56 +02001520Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +01001521 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
1522 Reported by roberto. #716
1523 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor63140682017-01-09 19:27:59 +02001524 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +01001525 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +01001526 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
1527 in the case of an error. Found by redplait. #590
Ron Eldorca6ff582017-01-12 14:50:50 +02001528 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001529 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciab820bf82017-05-04 11:05:55 +01001530 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
1531 compilation when using ARM Compiler 6.
Simon Butcher5deb5182017-07-26 17:25:55 +01001532 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001533 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher5deb5182017-07-26 17:25:55 +01001534 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1535 KNOX Security, Samsung Research America
Andres AG2e65a542017-02-17 13:54:43 +00001536 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001537 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e65a542017-02-17 13:54:43 +00001538 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1539 KNOX Security, Samsung Research America
Simon Butcher5deb5182017-07-26 17:25:55 +01001540 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001541 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher5deb5182017-07-26 17:25:55 +01001542 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +01001543 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +01001544 function mbedtls_time() instead. Found by wairua. #666
1545 * Avoid shadowing of time and index functions through mbed TLS function
1546 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001547
Janos Follath78b14732017-06-22 10:02:07 +01001548Changes
Janos Follathb85291c2017-06-22 10:02:07 +01001549 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +01001550 64-bit division. This is useful on embedded platforms where 64-bit division
1551 created a dependency on external libraries. #708
Janos Follath78b14732017-06-22 10:02:07 +01001552 * Removed mutexes from ECP hardware accelerator code. Now all hardware
1553 accelerator code in the library leaves concurrency handling to the
1554 platform. Reported by Steven Cooreman. #863
Andres Amaya Garciad0e15d72017-06-26 12:57:44 +01001555 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1556 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001557 * Added a test script that can be hooked into git that verifies commits
1558 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +01001559 * Improve documentation of PKCS1 decryption functions.
Janos Follath78b14732017-06-22 10:02:07 +01001560
Simon Butcherf2a597f2017-06-20 23:08:10 +01001561= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +01001562
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001563Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001564 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1565 The issue could only happen client-side with renegotiation enabled.
1566 Could result in DoS (application crash) or information leak
1567 (if the application layer sent data read from mbedtls_ssl_read()
1568 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001569 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
1570 certificate verification. SHA-1 can be turned back on with a compile-time
1571 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +02001572 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1573 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001574 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
1575 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001576
Hanno Beckereccf60c2017-06-05 15:19:01 +01001577Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001578 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
1579 valid C and they prevented the test from compiling in Visual Studio 2015
1580 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +01001581 * Fix insufficient support for signature-hash-algorithm extension,
1582 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +01001583 * Fix behaviour that hid the original cause of fatal alerts in some cases
1584 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +02001585 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001586 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1587 peer after sending a fatal alert to refuse a renegotiation attempt.
1588 Previous behaviour was to keep processing data even after the alert has
1589 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001590 * Accept empty trusted CA chain in authentication mode
Simon Butcherb03120a2018-04-30 16:40:25 +01001591 MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864
Janos Follath5a1c0e72017-06-16 09:00:07 +01001592 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1593 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1594 reflect bad EC curves within verification result.
1595 * Fix bug that caused the modular inversion function to accept the invalid
1596 modulus 1 and therefore to hang. Found by blaufish. #641.
1597 * Fix incorrect sign computation in modular exponentiation when the base is
1598 a negative MPI. Previously the result was always negative. Found by Guido
1599 Vranken.
1600 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1601 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001602
Gilles Peskine36091fe2017-05-03 16:55:03 +02001603Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001604 * Send fatal alerts in more cases. The previous behaviour was to skip
1605 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001606 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001607 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001608 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001609
Simon Butcher9f770172017-05-15 15:13:59 +01001610= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001611
Janos Follath45182a02017-03-23 10:41:56 +00001612Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001613 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001614 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1615 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001616 * Add exponent blinding to RSA private operations as a countermeasure
1617 against side-channel attacks like the cache attack described in
1618 https://arxiv.org/abs/1702.08719v2.
1619 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1620 Clémentine Maurice and Stefan Mangard.
1621
Simon Butcher4775e832017-05-13 22:56:08 +01001622Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001623 * Add hardware acceleration support for the Elliptic Curve Point module.
1624 This involved exposing parts of the internal interface to enable
1625 replacing the core functions and adding and alternative, module level
1626 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001627 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1628 suppressing the CA list in Certificate Request messages. The default
1629 behaviour has not changed, namely every configured CAs name is included.
1630
Andres AGf5bf7182017-03-03 14:09:56 +00001631API Changes
1632 * The following functions in the AES module have been deprecated and replaced
1633 by the functions shown below. The new functions change the return type from
1634 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1635 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1636 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1637 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1638
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001639Bugfix
1640 * Remove macros from compat-1.3.h that correspond to deleted items from most
1641 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001642 * Fixed issue in the Threading module that prevented mutexes from
1643 initialising. Found by sznaider. #667 #843
1644 * Add checks in the PK module for the RSA functions on 64-bit systems.
1645 The PK and RSA modules use different types for passing hash length and
1646 without these checks the type cast could lead to data loss. Found by Guido
1647 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001648
Simon Butcherb65c2be2017-03-10 18:50:44 +00001649= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001650
Janos Follath182013f2016-10-25 10:50:22 +01001651Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001652 * Add checks to prevent signature forgeries for very large messages while
1653 using RSA through the PK module in 64-bit systems. The issue was caused by
1654 some data loss when casting a size_t to an unsigned int value in the
1655 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1656 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001657 * Fixed potential livelock during the parsing of a CRL in PEM format in
1658 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1659 characters after the footer could result in the execution of an infinite
1660 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1661 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001662 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1663 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001664 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001665 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1666 when verifying the validity of a key on secp224k1. This could be
1667 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001668 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001669 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1670 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001671
Andres AG703990b2016-10-24 11:23:36 +01001672Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001673 * Fix output certificate verification flags set by x509_crt_verify_top() when
1674 traversing a chain of trusted CA. The issue would cause both flags,
1675 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1676 set when the verification conditions are not met regardless of the cause.
1677 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001678 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1679 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1680 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001681 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1682 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001683 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001684 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1685 would compare 64 bits of the record counter instead of 48 bits as indicated
1686 in RFC 6347 Section 4.3.1. This could cause the execution of the
1687 renegotiation routines at unexpected times when the protocol is DTLS. Found
1688 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001689 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001690 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001691 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001692 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1693 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1694 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1695 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1696 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1697 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001698 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1699 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001700 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1701 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001702 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1703 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001704 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1705 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001706 * Fixed the templates used to generate project and solution files for Visual
1707 Studio 2015 as well as the files themselves, to remove a build warning
1708 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001709 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1710 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001711 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1712 number to write in hexadecimal is negative and requires an odd number of
1713 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001714 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1715 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001716
Janos Follath4c006cd2016-12-13 14:14:03 +00001717= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001718
1719Changes
1720 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1721 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1722 Authentication – October 2016
1723
Simon Butcher19dbd412016-10-16 19:35:49 +01001724= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001725
Andres AG60dbc932016-09-02 15:23:48 +01001726Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001727 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1728 with RFC-5116 and could lead to session key recovery in very long TLS
1729 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1730 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1731 https://eprint.iacr.org/2016/475.pdf
1732 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001733 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001734 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001735 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001736
Simon Butchercf8c1f42016-09-02 21:29:39 +03001737Features
Simon Butcher21c54812016-10-05 14:17:37 +01001738 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1739 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001740 * Added hardware entropy selftest to verify that the hardware entropy source
1741 is functioning correctly.
1742 * Added a script to print build environment info for diagnostic use in test
1743 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001744 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1745 configure the maximum length of a file path that can be buffered when
1746 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001747 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001748 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001749 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1750 to configure the minimum number of bytes for entropy sources using the
1751 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001752
1753Bugfix
1754 * Fix for platform time abstraction to avoid dependency issues where a build
1755 may need time but not the standard C library abstraction, and added
1756 configuration consistency checks to check_config.h
1757 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001758 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1759 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001760 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1761 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001762 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1763 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001764 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001765 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001766 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001767 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001768 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001769 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001770 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1771 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1772 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001773 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1774 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001775 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001776 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001777 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001778 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001779 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1780 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001781 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001782 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001783 * Fix compatibility issue with Internet Explorer client authentication,
1784 where the limited hash choices prevented the client from sending its
1785 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001786 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001787
1788Changes
1789 * Extended test coverage of special cases, and added new timing test suite.
1790 * Removed self-tests from the basic-built-test.sh script, and added all
1791 missing self-tests to the test suites, to ensure self-tests are only
1792 executed once.
1793 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1794 * Added support for a Yotta specific configuration file -
1795 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001796 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001797 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001798 * Renamed source file library/net.c to library/net_sockets.c to avoid
1799 naming collision in projects which also have files with the common name
1800 net.c. For consistency, the corresponding header file, net.h, is marked as
1801 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001802 * Changed the strategy for X.509 certificate parsing and validation, to no
1803 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001804
Simon Butcher46125fb2016-06-27 19:43:55 +01001805= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001806
Janos Follathcc4eba72016-02-10 16:25:55 +00001807Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001808 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001809 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001810 * Fix potential integer overflow to buffer overflow in
1811 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001812 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001813 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001814 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1815 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001816
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001817Features
1818 * Support for platform abstraction of the standard C library time()
1819 function.
1820
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001821Bugfix
1822 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1823 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001824 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001825 * Fix potential build failures related to the 'apidoc' target, introduced
1826 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001827 * Fix issue in Makefile that prevented building using armar. #386
Antonin Décimod5f47592019-01-23 15:24:37 +01001828 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
Janos Follath4ae5c292016-02-10 11:27:43 +00001829 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001830 * Fix an issue that caused valid certificates to be rejected whenever an
1831 expired or not yet valid certificate was parsed before a valid certificate
1832 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001833 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001834 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001835 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001836 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1837 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001838 * Fix issue that caused a crash if invalid curves were passed to
1839 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001840 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001841 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001842 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001843 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001844
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001845Changes
1846 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1847 don't use the optimized assembly for bignum multiplication. This removes
1848 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001849 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001850 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1851 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001852 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1853 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001854
1855= mbed TLS 2.2.1 released 2016-01-05
1856
1857Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001858 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001859 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001860 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001861 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1862 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1863 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001864 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001865
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001866Bugfix
1867 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1868 * Fix bug in certificate validation that caused valid chains to be rejected
1869 when the first intermediate certificate has pathLenConstraint=0. Found by
1870 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001871 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001872 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001873 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001874 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001875 datagram if a single record in a datagram is unexpected, instead only
1876 drop the record and look at subsequent records (if any are present) in
1877 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001878
1879= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001880
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001881Security
1882 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1883 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001884 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001885 * Fix potential heap corruption on Windows when
1886 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1887 triggered remotely. Found by Guido Vranken, Intelworks.
1888 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001889 Cannot be triggered remotely unless you create X.509 certificates based
1890 on untrusted input or write keys of untrusted origin. Found by Guido
1891 Vranken, Intelworks.
1892 * The X509 max_pathlen constraint was not enforced on intermediate
1893 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001894 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001895
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001896Features
1897 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1898 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001899 * Added a key extraction callback to accees the master secret and key
1900 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001901
1902Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001903 * Self-signed certificates were not excluded from pathlen counting,
1904 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001905 provided by Janos Follath. #319
1906 * Fix build error with configurations where ECDHE-PSK is the only key
1907 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001908 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001909 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1910 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001911 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001912 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1913 size/curve against the profile. Before that, there was no way to set a
1914 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001915 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001916 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1917 Found by Kurt Danielson. #292
1918 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001919 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1920 certificates to be rejected by some applications, including OS X
1921 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001922
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001923Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001924 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1925 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001926
1927= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001928
1929Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001930 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1931 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001932 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001933 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001934 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1935 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1936 remotely.
1937 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001938 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001939 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1940 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1941 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1942 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1943 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1944 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001945 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001946 on crafted PEM input data. Found and fix provided by Guido Vranken,
1947 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001948 accept PEM data from an untrusted source.
1949 * Fix possible heap buffer overflow in base64_encoded() when the input
1950 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001951 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001952 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001953 the same mbedtls_ssl_config object and memory allocation fails. Found by
1954 Guido Vranken, Intelworks. Cannot be forced remotely.
1955 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001956 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001957 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001958 Found by Guido Vranken, Intelworks.
1959
1960Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001961 * Fix compile error in net.c with musl libc. Found and patch provided by
1962 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001963 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001964
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001965Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001966 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1967 domain names are compliant with RFC 1035.
1968 * Fixed paths for check_config.h in example config files. (Found by bachp)
1969 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001970
1971= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001972
1973Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001974 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001975 signatures. (Found by Florian Weimer, Red Hat.)
1976 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001977 * Fix possible client-side NULL pointer dereference (read) when the client
1978 tries to continue the handshake after it failed (a misuse of the API).
1979 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001980 afl-fuzz.)
1981
1982Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001983 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1984 * Fix off-by-one error in parsing Supported Point Format extension that
1985 caused some handshakes to fail.
1986
1987Changes
1988 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1989 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001990 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001991 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001992 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001993 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001994 detected and mbedtls_ssl_read() will return
1995 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001996 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001997
1998= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001999
2000Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02002001 * Added support for yotta as a build system.
2002 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02002003
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02002004Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02002005 * Fix segfault in the benchmark program when benchmarking DHM.
2006 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02002007 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02002008 * Fix bug when parsing a ServerHello without extensions (found by David
2009 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02002010 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
2011 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02002012 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
2013 installed (found by Rawi666).
2014 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02002015 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02002016 (found by robotanarchy) (#232).
2017 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02002018 tests (found by robotanarchy) (#232).
2019 * Fix missing -static-libgcc when building shared libraries for Windows
2020 with make.
Simon Butcher52754592015-09-03 13:06:01 +01002021 * Fix link error when building shared libraries for Windows with make.
2022 * Fix error when loading libmbedtls.so.
2023 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
2024 be always used (found by dcb314) (#235)
2025 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
2026 result trying to unlock an unlocked mutex on invalid input (found by
2027 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02002028 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02002029 * Fix memory corruption on client with overlong PSK identity, around
2030 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02002031 Aleksandrs Saveljevs) (#238)
2032 * Fix unused function warning when using MBEDTLS_MDx_ALT or
2033 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02002034 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
2035
2036Changes
Simon Butcher52754592015-09-03 13:06:01 +01002037 * The PEM parser now accepts a trailing space at end of lines (#226).
2038 * It is now possible to #include a user-provided configuration file at the
2039 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
2040 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02002041 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01002042 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01002043 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02002044 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02002045 Hugo Leisink) (#210).
2046 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
2047 length.
2048
2049= mbed TLS 2.0.0 released 2015-07-13
2050
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02002051Features
2052 * Support for DTLS 1.0 and 1.2 (RFC 6347).
2053 * Ability to override core functions from MDx, SHAx, AES and DES modules
2054 with custom implementation (eg hardware accelerated), complementing the
2055 ability to override the whole module.
2056 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02002057 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02002058 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02002059 which algorithms and key sizes (curves for ECDSA) are acceptable.
2060 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02002061 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01002062 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02002063 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01002064
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02002065API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02002066 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
2067 You now need to link to all of them if you use TLS for example.
2068 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02002069 Some names have been further changed to make them more consistent.
Antonin Décimod5f47592019-01-23 15:24:37 +01002070 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02002071 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02002072 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02002073 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02002074 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02002075 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02002076 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02002077 * The following _init() functions that could return errors have
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02002078 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02002079 should generally be the first function called on this context after init:
2080 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02002081 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
2082 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01002083 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02002084 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Tillmann Karras588ad502015-09-25 04:27:22 +02002085 Note that for mbedtls_ssl_setup(), you need to be done setting up the
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02002086 ssl_config structure before calling it.
2087 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
2088 ssl_set_session() and ssl_set_client_transport_id(), plus
2089 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02002090 (see rename.pl and compat-1.3.h above) and their first argument's type
2091 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01002092 * ssl_set_bio() changed signature (contexts merged, order switched, one
2093 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02002094 * The following functions have been introduced and must be used in callback
2095 implementations (SNI, PSK) instead of their *conf counterparts:
2096 mbedtls_ssl_set_hs_own_cert()
2097 mbedtls_ssl_set_hs_ca_chain()
2098 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02002099 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01002100 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02002101 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01002102 pointer, parameters reordered).
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02002103 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
2104 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02002105 * The SSL debug callback gained two new arguments (file name, line number).
2106 * Debug modes were removed.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02002107 * mbedtls_ssl_conf_truncated_hmac() now returns void.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01002108 * mbedtls_memory_buffer_alloc_init() now returns void.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02002109 * X.509 verification flags are now an uint32_t. Affect the signature of:
2110 mbedtls_ssl_get_verify_result()
2111 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01002112 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02002113 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01002114 * The following functions changed prototype to avoid an in-out length
2115 parameter:
2116 mbedtls_base64_encode()
2117 mbedtls_base64_decode()
2118 mbedtls_mpi_write_string()
2119 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02002120 * In the NET module, all "int" and "int *" arguments for file descriptors
2121 changed type to "mbedtls_net_context *".
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02002122 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02002123 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
2124 return void.
Antonin Décimod5f47592019-01-23 15:24:37 +01002125 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02002126 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02002127 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02002128 * Last argument of x509_crt_check_key_usage() and
2129 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01002130 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
2131 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
2132 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01002133 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02002134 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
2135 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
2136 length parameter to include the terminating null byte for PEM input.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00002137 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02002138 * calloc() is now used instead of malloc() everywhere. API of platform
2139 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02002140 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00002141 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
2142 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02002143 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
2144 in config.h
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02002145 * net_connect() and net_bind() have a new 'proto' argument to choose
2146 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02002147 Their 'port' argument type is changed to a string.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02002148 * Some constness fixes
2149
2150Removals
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02002151 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02002152 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
2153 mbedtls_ecp_muladd().
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02002154 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
2155 (use generic functions from md.h)
2156 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02002157 waiting function.
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02002158 * Removed test DHM parameters from the test certs module.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02002159 * Removed the PBKDF2 module (use PKCS5).
2160 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
2161 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
2162 * Removed openssl.h (very partial OpenSSL compatibility layer).
2163 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
2164 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
2165 been removed (compiler is required to support 32-bit operations).
2166 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
2167 * Removed test program o_p_test, the script compat.sh does more.
2168 * Removed test program ssl_test, superseded by ssl-opt.sh.
2169 * Removed helper script active-config.pl
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01002170
2171New deprecations
2172 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
2173 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02002174
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01002175Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02002176 * Renamed a few headers to include _internal in the name. Those headers are
2177 not supposed to be included by users.
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02002178 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
2179 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02002180 * Changed cipher_base_t into an opaque structure.
2181 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01002182 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02002183 * Removed r and s from ecdsa_context
2184 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01002185
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01002186Default behavior changes
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02002187 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01002188 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
2189 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00002190 * Support for receiving SSLv2 ClientHello is now disabled by default at
2191 compile time.
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01002192 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02002193 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
2194 enabled in the default configuration, this is only noticeable if using a
2195 custom config.h
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01002196 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02002197 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
2198 chain verification.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01002199 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02002200 * The following functions are now case-sensitive:
2201 mbedtls_cipher_info_from_string()
2202 mbedtls_ecp_curve_info_from_name()
2203 mbedtls_md_info_from_string()
2204 mbedtls_ssl_ciphersuite_from_string()
2205 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01002206
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02002207Requirement changes
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02002208 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02002209 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01002210 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00002211
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02002212API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01002213 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
2214 new prototype, and mbedtls_ssl_set_read_timeout().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02002215 * The following functions now return void:
2216 mbedtls_ssl_conf_transport()
2217 mbedtls_ssl_conf_max_version()
2218 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02002219 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
2220 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
2221 an example implementation, see mbedtls_timing_delay_context and
2222 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02002223 * With UDP sockets, it is no longer necessary to call net_bind() again
2224 after a successful net_accept().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01002225
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01002226Changes
2227 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
2228 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02002229 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
2230 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01002231
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002232= mbed TLS 1.3 branch
2233
2234Security
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02002235 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01002236 extendedKeyUsage on the leaf certificate was lost (results not accessible
2237 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02002238 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2239 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002240
2241Features
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02002242 * Improve ECC performance by using more efficient doubling formulas
2243 (contributed by Peter Dettman).
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02002244 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02002245 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02002246 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01002247 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
2248 * Add support for id-at-uniqueIdentifier in X.509 names.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00002249 * Add support for overriding snprintf() (except on Windows) and exit() in
2250 the platform layer.
2251 * Add an option to use macros instead of function pointers in the platform
2252 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00002253 * Improved Makefiles for Windows targets by fixing library targets and making
2254 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00002255 * The benchmark program also prints heap usage for public-key primitives
2256 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
2257 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
2258 speed and RAM (heap only for now) usage.
2259 * New script memory.sh helps measuring the ROM and RAM requirements of two
2260 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002261 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01002262 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002263 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01002264 errors on use of deprecated functions.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002265
2266Bugfix
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01002267 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01002268 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01002269 * Fix bug in entropy.c when THREADING_C is also enabled that caused
2270 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02002271 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
2272 once on the same context.
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02002273 * Fix bug in ssl_mail_client when password is longer that username (found
2274 by Bruno Pape).
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02002275 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
2276 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02002277 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
2278 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02002279 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
2280 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02002281 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02002282 * Fix potential NULL pointer dereference (not trigerrable remotely) when
2283 ssl_write() is called before the handshake is finished (introduced in
2284 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02002285 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
2286 rejected.
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01002287 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01002288 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00002289 * Fix hardclock() (only used in the benchmarking program) with some
2290 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00002291 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00002292 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2293 platforms.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00002294 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00002295 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
2296 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
2297 in 1.3.10).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00002298 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02002299 * Add missing dependency on SHA-256 in some x509 programs (reported by
2300 Gergely Budai).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02002301 * Fix bug related to ssl_set_curves(): the client didn't check that the
2302 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00002303
2304Changes
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02002305 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
2306 * Remove potential sources of timing variations (some contributed by Pascal
2307 Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02002308 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02002309 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02002310 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02002311 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00002312 more flexible (warning: OFLAGS is not used any more) (see the README)
2313 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02002314 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00002315 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00002316 * Move from SHA-1 to SHA-256 in example programs using signatures
2317 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00002318 * Remove some unneeded inclusions of header files from the standard library
2319 "minimize" others (eg use stddef.h if only size_t is needed).
2320 * Change #include lines in test files to use double quotes instead of angle
2321 brackets for uniformity with the rest of the code.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00002322 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02002323
Paul Bakkerdaae3b72015-02-08 15:49:54 +01002324= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002325Security
2326 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00002327 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002328 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
2329 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002330 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01002331 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002332 client certificate) (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01002333 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01002334 (TLS server is not affected if it doesn't ask for a client certificate)
2335 (found using Codenomicon Defensics).
2336 * Fix potential stack overflow while parsing crafted X.509 certificates
2337 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01002338 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00002339 * Fix timing difference that could theoretically lead to a
2340 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
2341 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01002342
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002343Features
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002344 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
2345 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
2346 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002347 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01002348 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01002349 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2350 length of an X.509 verification chain.
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01002351 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01002352 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Paul Bakker6152b022015-04-14 15:00:09 +02002353 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01002354 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01002355 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
2356 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002357 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01002358 while using the default ciphersuite list.
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00002359 * Added new error codes and debug messages about selection of
2360 ciphersuite/certificate.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01002361
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01002362Bugfix
2363 * Stack buffer overflow if ctr_drbg_update() is called with too large
2364 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01002365 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
2366 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002367 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
2368 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01002369 by Julian Ospald).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01002370 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01002371 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
2372 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00002373 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2374 Peter Vaskovic).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00002375 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00002376 * ssl_get_verify_result() now works even if the handshake was aborted due
2377 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00002378 * Skip writing and parsing signature_algorithm extension if none of the
2379 key exchanges enabled needs certificates. This fixes a possible interop
2380 issue with some servers when a zero-length extension was sent. (Reported
2381 by Peter Dettman.)
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00002382 * On a 0-length input, base64_encode() did not correctly set output length
2383 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01002384
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01002385Changes
2386 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
2387 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01002388 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01002389 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01002390 * Forbid repeated extensions in X.509 certificates.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01002391 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01002392 * A specific error is now returned when there are ciphersuites in common
2393 but none of them is usable due to external factors such as no certificate
Paul Bakkere522d0f2015-01-14 16:12:48 +01002394 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01002395 * It is now possible to disable negotiation of truncated HMAC server-side
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01002396 at runtime with ssl_set_truncated_hmac().
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01002397 * Example programs for SSL client and server now disable SSLv3 by default.
2398 * Example programs for SSL client and server now disable RC4 by default.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00002399 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01002400
Paul Bakker9eac4f72014-10-20 13:56:15 +02002401= PolarSSL 1.3.9 released 2014-10-20
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02002402Security
2403 * Lowest common hash was selected from signature_algorithms extension in
2404 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02002405 * Remotely-triggerable memory leak when parsing some X.509 certificates
Paul Bakkerb082bb52014-10-20 13:37:51 +02002406 (server is not affected if it doesn't ask for a client certificate)
2407 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02002408 * Remotely-triggerable memory leak when parsing crafted ClientHello
Paul Bakkerb082bb52014-10-20 13:37:51 +02002409 (not affected if ECC support was compiled out) (found using Codenomicon
2410 Defensics).
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02002411
Paul Bakker8dcb2d72014-08-08 12:22:30 +02002412Bugfix
2413 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02002414 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02002415 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02002416 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02002417 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02002418 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
2419 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02002420 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02002421 * ssl_read() could return non-application data records on server while
2422 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02002423 * Server-initiated renegotiation would fail with non-blocking I/O if the
2424 write callback returned WANT_WRITE when requesting renegotiation.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02002425 * ssl_close_notify() could send more than one message in some circumstances
2426 with non-blocking I/O.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02002427 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Paul Bakker5a5fa922014-09-26 14:53:04 +02002428 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02002429 * Fix compile error with armcc in mpi_is_prime()
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02002430 * Fix potential bad read in parsing ServerHello (found by Adrien
2431 Vialletelle).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02002432
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002433Changes
2434 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
2435 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02002436 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
2437 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02002438 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
2439 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02002440 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2441 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02002442 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
2443 RSA keys.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02002444 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02002445 * X.509 certificates with more than one AttributeTypeAndValue per
2446 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02002447
Paul Bakker1910aa72014-07-11 11:28:56 +02002448= PolarSSL 1.3.8 released 2014-07-11
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02002449Security
2450 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2451 It was possible to crash the server (and client) using crafted messages
2452 when a GCM suite was chosen.
2453
Paul Bakkerc6ece492014-05-22 15:45:03 +02002454Features
2455 * Add CCM module and cipher mode to Cipher Layer
2456 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02002457 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
2458 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02002459 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02002460 * Add example config.h for PSK with CCM, optimized for low RAM usage.
2461 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02002462 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
2463 from the default list (inactive by default).
Paul Bakker23647b42014-07-04 15:00:12 +02002464 * Add server-side enforcement of sent renegotiation requests
2465 (ssl_set_renegotiation_enforced())
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02002466 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
2467 ciphersuites to use and save some memory if the list is small.
Paul Bakkerc6ece492014-05-22 15:45:03 +02002468
Paul Bakker863989b2014-06-12 21:49:01 +02002469Changes
2470 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
2471 required on some platforms (e.g. OpenBSD)
Paul Bakker34617722014-06-13 17:20:13 +02002472 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2473 against unwanted compiler optimizations
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02002474 * md_list() now returns hashes strongest first
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02002475 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
2476 strongest offered by client.
Paul Bakker28476e22014-07-01 15:59:04 +02002477 * All public contexts have _init() and _free() functions now for simpler
2478 usage pattern
Paul Bakker863989b2014-06-12 21:49:01 +02002479
Paul Bakker5593f7c2014-05-06 10:29:28 +02002480Bugfix
2481 * Fix in debug_print_msg()
Paul Bakker1ebc0c52014-05-22 15:47:58 +02002482 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakkerdff31392014-05-22 15:06:41 +02002483 * Remove less-than-zero checks on unsigned numbers
Paul Bakker0f651c72014-05-22 15:12:19 +02002484 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2485 size (found by TrustInSoft)
Paul Bakker49033ba2014-06-12 21:46:13 +02002486 * Fix WSAStartup() return value check (found by Peter Vaskovic)
2487 * Other minor issues (found by Peter Vaskovic)
2488 * Fix symlink command for cross compiling with CMake (found by Andre
2489 Heinecke)
Paul Bakker3c38f292014-06-13 17:37:46 +02002490 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002491 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02002492 use with some ciphersuites and versions (RC4 in all versions, CBC with
2493 versions < TLS 1.1).
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002494 * Very large records using more than 224 bytes of padding were incorrectly
2495 rejected with CBC-based ciphersuites and TLS >= 1.1
2496 * Very large records using less padding could cause a buffer overread of up
2497 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02002498 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
2499 been removed in 1.3.6.)
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02002500 * Restore ability to locally trust a self-signed cert that is not a proper
2501 CA for use as an end entity certificate. (This had been removed in
2502 1.3.6.)
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07002503 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02002504 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2505 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02002506 * Fix off-by-one error in parsing Supported Point Format extension that
2507 caused some handshakes to fail.
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02002508 * Fix possible miscomputation of the premaster secret with DHE-PSK key
2509 exchange that caused some handshakes to fail with other implementations.
2510 (Failure rate <= 1/255 with common DHM moduli.)
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02002511 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerd5983182014-07-04 13:50:31 +02002512 * Fix base64_decode() to return and check length correctly (in case of
2513 tight buffers)
Paul Bakker6c343d72014-07-10 14:36:19 +02002514 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
2515 by Hui Dong)
Paul Bakker5593f7c2014-05-06 10:29:28 +02002516
Paul Bakker47431b62014-05-02 13:27:13 +02002517= PolarSSL 1.3.7 released on 2014-05-02
Paul Bakkereaebbd52014-04-25 15:04:14 +02002518Features
Paul Bakkerc73079a2014-04-25 16:34:30 +02002519 * debug_set_log_mode() added to determine raw or full logging
2520 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker0f90d7d2014-04-30 11:49:44 +02002521 * version_check_feature() added to check for compile-time options at
2522 run-time
Paul Bakker92478c32014-04-25 15:18:34 +02002523
Paul Bakker088c5c52014-04-25 11:11:10 +02002524Changes
2525 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
2526 checked and filled in the relevant module headers
Paul Bakker92478c32014-04-25 15:18:34 +02002527 * Debug module only outputs full lines instead of parts
Paul Bakker63844402014-04-30 15:34:12 +02002528 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02002529 * AES-NI now compiles with "old" assemblers too
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02002530 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker088c5c52014-04-25 11:11:10 +02002531
Paul Bakkere92f73d2014-04-18 14:08:26 +02002532Bugfix
2533 * Only iterate over actual certificates in ssl_write_certificate_request()
2534 (found by Matthew Page)
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02002535 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
2536 Karger)
Paul Bakkerfdba4682014-04-25 11:48:35 +02002537 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakker61885c72014-04-25 12:59:03 +02002538 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
2539 ciphersuites, for full SSL frames of data.
Paul Bakkera7036632014-04-30 10:15:38 +02002540 * Improve interoperability by not writing extension length in ClientHello /
2541 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02002542 * rsa_check_pubkey() now allows an E up to N
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002543 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakker33dc46b2014-04-30 16:11:39 +02002544 * mpi_fill_random() was creating numbers larger than requested on
2545 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002546 * Fix dependencies issues in X.509 test suite.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002547 * Some parts of ssl_tls.c were compiled even when the module was disabled.
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002548 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Barry K. Nathancf975f52014-04-23 17:40:25 -07002549 * Fix detection of Clang on some Apple platforms with CMake
2550 (found by Barry K. Nathan)
Paul Bakkere92f73d2014-04-18 14:08:26 +02002551
Paul Bakker784b04f2014-04-11 15:33:59 +02002552= PolarSSL 1.3.6 released on 2014-04-11
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002553
Paul Bakker27e36d32014-04-08 12:33:37 +02002554Features
2555 * Support for the ALPN SSL extension
Paul Bakker1cfc4582014-04-09 15:25:13 +02002556 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002557 * Enable verification of the keyUsage extension for CA and leaf
Paul Bakker59366212014-04-09 15:55:20 +02002558 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002559 * Enable verification of the extendedKeyUsage extension
2560 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02002561
Paul Bakker4984d3c2014-04-04 15:39:37 +02002562Changes
2563 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002564 * pk_verify() now returns a specific error code when the signature is valid
2565 but shorter than the supplied length.
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002566 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002567 * Reject certificates with times not in UTC, per RFC 5280.
Paul Bakker4984d3c2014-04-04 15:39:37 +02002568
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002569Security
2570 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
2571 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002572 * The notAfter date of some certificates was no longer checked since 1.3.5.
2573 This affects certificates in the user-supplied chain except the top
2574 certificate. If the user-supplied chain contains only one certificates,
2575 it is not affected (ie, its notAfter date is properly checked).
Paul Bakker4224bc02014-04-08 14:36:50 +02002576 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2577 TrustInSoft)
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002578
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002579Bugfix
2580 * The length of various ClientKeyExchange messages was not properly checked.
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002581 * Some example server programs were not sending the close_notify alert.
Paul Bakker75a28602014-03-31 12:08:17 +02002582 * Potential memory leak in mpi_exp_mod() when error occurs during
2583 calculation of RR.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002584 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002585 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
2586 Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002587 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2588 (found by Gergely Budai)
Shuo Chen95a0d112014-04-04 21:04:40 -07002589 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2590 Shuo Chen).
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002591 * oid_get_numeric_string() used to truncate the output without returning an
2592 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002593 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002594 * Calling pk_debug() on an RSA-alt key would segfault.
2595 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Paul Bakker16300582014-04-11 13:28:43 +02002596 * Potential buffer overwrite in pem_write_buffer() because of low length
2597 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002598 * EC curves constants, which should be only in ROM since 1.3.3, were also
2599 stored in RAM due to missing 'const's (found by Gergely Budai).
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002600
Paul Bakker96d52652014-03-26 16:55:50 +01002601= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002602Features
2603 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002604 * Option to set the Curve preference order (disabled by default)
Paul Bakker6a28e722014-02-06 13:41:55 +01002605 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakkerf2561b32014-02-06 15:11:55 +01002606 * Ability to provide alternate timing implementation
Paul Bakker2ceda572014-02-06 15:55:25 +01002607 * Ability to force the entropy module to use SHA-256 as its basis
2608 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002609 * Testing script ssl-opt.sh added for testing 'live' ssl option
2610 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002611 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Paul Bakker66ff70d2014-03-26 11:54:05 +01002612 * Entropy module now supports seed writing and reading
Paul Bakker6a28e722014-02-06 13:41:55 +01002613
2614Changes
2615 * Deprecated the Memory layer
Paul Bakker47703a02014-02-06 15:01:20 +01002616 * entropy_add_source(), entropy_update_manual() and entropy_gather()
2617 now thread-safe if POLARSSL_THREADING_C defined
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002618 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002619 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2620 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002621 * Revamped the compat.sh interoperatibility script to include support for
2622 testing against GnuTLS
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002623 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Paul Bakker674e0b02014-03-26 13:26:52 +01002624 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002625
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002626Security
2627 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002628 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002629 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002630 * Check notBefore timestamp of certificates and CRLs from the future.
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002631 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002632 * Fixed possible buffer overflow with overlong PSK
Paul Bakker91c61bc2014-03-26 14:06:55 +01002633 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2634 TrustInSoft)
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002635
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002636Bugfix
2637 * ecp_gen_keypair() does more tries to prevent failure because of
2638 statistics
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002639 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002640 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002641 * Fixed version-major intolerance in server
Paul Bakker3d52ab72014-03-07 10:33:55 +01002642 * Fixed CMake symlinking on out-of-source builds
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002643 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002644 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Alex Wilson73491422014-03-06 00:04:09 +10002645 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2646 Alex Wilson.)
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002647 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
2648 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002649 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002650 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002651 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002652 client certificate.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002653 * ssl_srv was leaking memory when client presented a timed out ticket
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002654 containing a client certificate
Paul Bakker3d6504a2014-03-17 13:41:51 +01002655 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2656 out_ctr failed
Paul Bakker77f4f392014-03-26 15:28:55 +01002657 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2658 of one of them failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002659 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker5fff23b2014-03-26 15:34:54 +01002660 * x509_get_current_time() uses localtime_r() to prevent thread issues
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002661
Paul Bakker2aca2412014-01-27 11:49:46 +01002662= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker3eb96732014-01-22 13:08:19 +01002663Features
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002664 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakker5862eee2014-01-22 14:18:03 +01002665 * Support for RIPEMD-160
Paul Bakker556efba2014-01-24 15:38:12 +01002666 * Support for AES CFB8 mode
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002667 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker3eb96732014-01-22 13:08:19 +01002668
2669Bugfix
2670 * Potential memory leak in bignum_selftest()
2671 * Replaced expired test certificate
Paul Bakkerd75ba402014-01-24 16:11:17 +01002672 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakkerb84582b2014-01-27 12:23:43 +01002673 * net module handles timeouts on blocking sockets better (found by Tilman
2674 Sauerbeck)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002675 * Assembly format fixes in bn_mul.h
2676
2677Security
Paul Bakkerb84582b2014-01-27 12:23:43 +01002678 * Missing MPI_CHK calls added around unguarded mpi calls (found by
2679 TrustInSoft)
Paul Bakker3eb96732014-01-22 13:08:19 +01002680
Paul Bakker5bc07a32013-12-31 10:57:44 +01002681= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker014f1432013-12-02 14:54:01 +01002682Features
2683 * EC key generation support in gen_key app
Paul Bakker9dc53a92013-12-02 14:55:28 +01002684 * Support for adhering to client ciphersuite order preference
2685 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker48d78a52013-12-05 16:11:38 +01002686 * Support for Curve25519
Paul Bakkerfdf94692013-12-17 13:09:31 +01002687 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakker5a607d22013-12-17 14:33:42 +01002688 * Support for IPv6 in the NET module
Paul Bakker23116fd2013-12-30 14:09:47 +01002689 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakkerf9c49532013-12-19 15:40:58 +01002690 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakker014f1432013-12-02 14:54:01 +01002691
Paul Bakker7aa03752013-11-26 17:37:31 +01002692Changes
2693 * gen_prime() speedup
2694 * Speedup of ECP multiplication operation
2695 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002696 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker4040d7e2013-12-02 14:52:57 +01002697 * More constant-time checks in the RSA module
Paul Bakkerb14817d2013-12-02 22:03:23 +01002698 * Split off curves from ecp.c into ecp_curves.c
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002699 * Curves are now stored fully in ROM
Paul Bakkerc7387912013-12-31 10:32:50 +01002700 * Memory usage optimizations in ECP module
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002701 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker7aa03752013-11-26 17:37:31 +01002702
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002703Bugfix
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002704 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002705 * Fixed X.509 hostname comparison (with non-regular characters)
Paul Bakkera9a028e2013-11-21 17:31:06 +01002706 * SSL now gracefully handles missing RNG
Paul Bakker7aa03752013-11-26 17:37:31 +01002707 * Missing defines / cases for RSA_PSK key exchange
2708 * crypt_and_hash app checks MAC before final decryption
Paul Bakker6f0636a2013-12-16 15:24:05 +01002709 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakkerf70fe812013-12-16 16:43:10 +01002710 * Memory leak in benchmark application
Paul Bakker1a56fc92013-12-19 13:51:24 +01002711 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6ea1a952013-12-31 11:16:03 +01002712 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2713 TrustInSoft)
Paul Bakker6992eb72013-12-31 11:35:16 +01002714 * Fixed potential overflow in certificate size verification in
2715 ssl_write_certificate() (found by TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002716
Paul Bakker956c9e02013-12-19 14:42:28 +01002717Security
2718 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2719 TrustInSoft)
2720
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002721= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker08bb1872013-10-28 14:03:26 +01002722Features
2723 * PK tests added to test framework
Paul Bakker3f917e22013-10-28 14:16:59 +01002724 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker16421222013-10-28 14:37:09 +01002725 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker08bb1872013-10-28 14:03:26 +01002726
Paul Bakker7bc745b2013-10-28 14:39:49 +01002727Changes
2728 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002729 * Value comparisons in SSL layer are now constant-time
Paul Bakker7b0be682013-10-29 14:24:37 +01002730 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakkere1121b62013-10-31 14:37:37 +01002731 * SSL Renegotiation was refactored
Paul Bakker7bc745b2013-10-28 14:39:49 +01002732
Paul Bakker677377f2013-10-28 12:54:26 +01002733Bugfix
Paul Bakker16421222013-10-28 14:37:09 +01002734 * More stringent checks in cipher layer
Paul Bakker677377f2013-10-28 12:54:26 +01002735 * Server does not send out extensions not advertised by client
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002736 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker68037da2013-10-28 14:02:40 +01002737 * Misc fixes and additions to dependency checks
Paul Bakker50dc8502013-10-28 21:19:10 +01002738 * Const correctness
Paul Bakker93c6aa42013-10-28 22:28:09 +01002739 * cert_write with selfsign should use issuer_name as subject_name
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002740 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002741 * Defines to handle UEFI environment under MSVC
Paul Bakkere1121b62013-10-31 14:37:37 +01002742 * Server-side initiated renegotiations send HelloRequest
Paul Bakker677377f2013-10-28 12:54:26 +01002743
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002744= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakkerb799dec2013-10-11 10:03:27 +02002745Features
2746 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakker376e8152013-10-15 12:44:23 +02002747 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerf34673e2013-10-15 12:46:17 +02002748 * Support for RSA-PSK key-exchange and ciphersuites
Paul Bakkerb799dec2013-10-11 10:03:27 +02002749
Paul Bakkerddba8822013-10-11 09:21:56 +02002750Changes
2751 * RSA blinding locks for a smaller amount of time
Paul Bakker16770332013-10-11 09:59:44 +02002752 * TLS compression only allocates working buffer once
Paul Bakkerbe089b02013-10-14 15:51:50 +02002753 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002754 * config.h is more script-friendly
Paul Bakkerddba8822013-10-11 09:21:56 +02002755
2756Bugfix
2757 * Missing MSVC defines added
2758 * Compile errors with POLARSSL_RSA_NO_CRT
2759 * Header files with 'polarssl/'
Paul Bakkerfcc17212013-10-11 09:36:52 +02002760 * Const correctness
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002761 * Possible naming collision in dhm_context
Paul Bakker4aa40d42013-10-11 10:49:24 +02002762 * Better support for MSVC
Paul Bakkerb7c13122013-10-11 10:51:32 +02002763 * threading_set_alt() name
Paul Bakker5191e922013-10-11 10:54:28 +02002764 * Added missing x509write_crt_set_version()
Paul Bakkerddba8822013-10-11 09:21:56 +02002765
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002766= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker41c83d32013-03-20 14:39:14 +01002767Features
2768 * Elliptic Curve Cryptography module added
2769 * Elliptic Curve Diffie Hellman module added
2770 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2771 (ECDHE-based ciphersuites)
Paul Bakkerc8676782013-08-28 12:15:11 +02002772 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
2773 (ECDSA-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002774 * Ability to specify allowed ciphersuites based on the protocol version.
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002775 * PSK and DHE-PSK based ciphersuites added
Paul Bakker6e339b52013-07-03 13:37:05 +02002776 * Memory allocation abstraction layer added
2777 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakker2466d932013-09-28 14:40:38 +02002778 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002779 * Public Key abstraction layer added
Paul Bakkerf85778e2013-07-19 14:55:25 +02002780 * Parsing Elliptic Curve keys
2781 * Parsing Elliptic Curve certificates
2782 * Support for max_fragment_length extension (RFC 6066)
2783 * Support for truncated_hmac extension (RFC 6066)
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002784 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
2785 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
Paul Bakker936539a2013-08-14 13:49:20 +02002786 * Support for session tickets (RFC 5077)
Paul Bakkerca174fe2013-08-28 16:31:30 +02002787 * Certificate Request (CSR) generation with extensions (key_usage,
2788 ns_cert_type)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002789 * X509 Certificate writing with extensions (basic_constraints,
2790 issuer_key_identifier, etc)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002791 * Optional blinding for RSA, DHM and EC
Paul Bakker8b817dc2013-09-25 18:03:58 +02002792 * Support for multiple active certificate / key pairs in SSL servers for
Darryl Green11999bb2018-03-13 15:22:58 +00002793 the same host (Not to be confused with SNI!)
Paul Bakker41c83d32013-03-20 14:39:14 +01002794
Paul Bakker9b5798d2013-03-13 13:53:00 +01002795Changes
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002796 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2797 individually
Paul Bakker68884e32013-01-07 18:20:04 +01002798 * Introduced separate SSL Ciphersuites module that is based on
2799 Cipher and MD information
Paul Bakker9b5798d2013-03-13 13:53:00 +01002800 * Internals for SSL module adapted to have separate IV pointer that is
2801 dynamically set (Better support for hardware acceleration)
Paul Bakkerc70b9822013-04-07 22:00:46 +02002802 * Moved all OID functionality to a separate module. RSA function
2803 prototypes for the RSA sign and verify functions changed as a result
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002804 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker2fbefde2013-06-29 16:01:15 +02002805 * Client and server now filter sent and accepted ciphersuites on minimum
2806 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002807 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002808 * Renamed error_strerror() to the less conflicting polarssl_strerror()
2809 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002810 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002811 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002812 * X509 core refactored
2813 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002814 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002815 * Support faulty X509 v1 certificates with extensions
2816 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002817
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002818Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002819 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002820 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002821 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002822 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002823
Paul Bakkeraab30c12013-08-30 11:00:25 +02002824Security
2825 * RSA blinding on CRT operations to counter timing attacks
2826 (found by Cyril Arnaud and Pierre-Alain Fouque)
2827
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002828
2829= Version 1.2.14 released 2015-05-??
2830
2831Security
2832 * Fix potential invalid memory read in the server, that allows a client to
2833 crash it remotely (found by Caj Larsson).
2834 * Fix potential invalid memory read in certificate parsing, that allows a
2835 client to crash the server remotely if client authentication is enabled
2836 (found using Codenomicon Defensics).
2837 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2838 https://dl.acm.org/citation.cfm?id=2714625
2839
2840Bugfix
2841 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2842 * Fix hardclock() (only used in the benchmarking program) with some
2843 versions of mingw64 (found by kxjhlele).
2844 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2845 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2846 platforms (found with Coverity Scan).
2847
2848= Version 1.2.13 released 2015-02-16
2849Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2850 this will be made in the 1.2 branch at this point.
2851
2852Security
2853 * Fix remotely-triggerable uninitialised pointer dereference caused by
2854 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2855 for a client certificate) (found using Codenomicon Defensics).
2856 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2857 (TLS server is not affected if it doesn't ask for a client certificate)
2858 (found using Codenomicon Defensics).
2859 * Fix potential stack overflow while parsing crafted X.509 certificates
2860 (TLS server is not affected if it doesn't ask for a client certificate)
2861 found using Codenomicon Defensics).
2862 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2863 (TLS server is not affected if it doesn't ask for a client certificate).
2864
2865Bugfix
2866 * Fix potential undefined behaviour in Camellia.
2867 * Fix memory leaks in PKCS#5 and PKCS#12.
2868 * Stack buffer overflow if ctr_drbg_update() is called with too large
2869 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2870 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2871 in 1.2.12).
2872 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2873 Peter Vaskovic).
2874 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2875 * ssl_get_verify_result() now works even if the handshake was aborted due
2876 to a failed verification (found by Fredrik Axelsson).
2877 * Skip writing and parsing signature_algorithm extension if none of the
2878 key exchanges enabled needs certificates. This fixes a possible interop
2879 issue with some servers when a zero-length extension was sent. (Reported
2880 by Peter Dettman.)
2881 * On a 0-length input, base64_encode() did not correctly set output length
2882 (found by Hendrik van den Boogaard).
2883
2884Changes
2885 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2886 * Forbid repeated extensions in X.509 certificates.
2887 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2888 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002889= Version 1.2.12 released 2014-10-24
2890
2891Security
2892 * Remotely-triggerable memory leak when parsing some X.509 certificates
2893 (server is not affected if it doesn't ask for a client certificate).
2894 (Found using Codenomicon Defensics.)
2895
2896Bugfix
2897 * Fix potential bad read in parsing ServerHello (found by Adrien
2898 Vialletelle).
2899 * ssl_close_notify() could send more than one message in some circumstances
2900 with non-blocking I/O.
2901 * x509_crt_parse() did not increase total_failed on PEM error
2902 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2903 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2904 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2905 * ssl_read() could return non-application data records on server while
2906 renegotation was pending, and on client when a HelloRequest was received.
2907 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2908
2909Changes
2910 * X.509 certificates with more than one AttributeTypeAndValue per
2911 RelativeDistinguishedName are not accepted any more.
2912 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2913 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2914 * Accept spaces at end of line or end of buffer in base64_decode().
2915
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002916= Version 1.2.11 released 2014-07-11
2917Features
2918 * Entropy module now supports seed writing and reading
2919
2920Changes
2921 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2922 * Improvements to the CMake build system, contributed by Julian Ospald.
2923 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2924 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2925 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2926 * Use UTC time to check certificate validity.
2927 * Reject certificates with times not in UTC, per RFC 5280.
2928 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2929 against unwanted compiler optimizations
2930
2931Security
2932 * Forbid change of server certificate during renegotiation to prevent
2933 "triple handshake" attack when authentication mode is optional (the
2934 attack was already impossible when authentication is required).
2935 * Check notBefore timestamp of certificates and CRLs from the future.
2936 * Forbid sequence number wrapping
2937 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2938 TrustInSoft)
2939 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2940 It was possible to crash the server (and client) using crafted messages
2941 when a GCM suite was chosen.
2942
2943Bugfix
2944 * Fixed X.509 hostname comparison (with non-regular characters)
2945 * SSL now gracefully handles missing RNG
2946 * crypt_and_hash app checks MAC before final decryption
2947 * Fixed x509_crt_parse_path() bug on Windows platforms
2948 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2949 TrustInSoft)
2950 * Fixed potential overflow in certificate size verification in
2951 ssl_write_certificate() (found by TrustInSoft)
2952 * Fix ASM format in bn_mul.h
2953 * Potential memory leak in bignum_selftest()
2954 * Replaced expired test certificate
2955 * ssl_mail_client now terminates lines with CRLF, instead of LF
2956 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2957 * Fixed testing with out-of-source builds using cmake
2958 * Fixed version-major intolerance in server
2959 * Fixed CMake symlinking on out-of-source builds
2960 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2961 Alex Wilson.)
2962 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2963 out_ctr failed
2964 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2965 of one of them failed
2966 * x509_get_current_time() uses localtime_r() to prevent thread issues
2967 * Some example server programs were not sending the close_notify alert.
2968 * Potential memory leak in mpi_exp_mod() when error occurs during
2969 calculation of RR.
2970 * Improve interoperability by not writing extension length in ClientHello
2971 when no extensions are present (found by Matthew Page)
2972 * rsa_check_pubkey() now allows an E up to N
2973 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2974 * mpi_fill_random() was creating numbers larger than requested on
2975 big-endian platform when size was not an integer number of limbs
2976 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2977 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2978 size (found by TrustInSoft)
2979 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2980 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2981 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2982 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2983 * Fix base64_decode() to return and check length correctly (in case of
2984 tight buffers)
2985
Paul Bakker3a2c0562013-10-07 16:22:05 +02002986= Version 1.2.10 released 2013-10-07
2987Changes
2988 * Changed RSA blinding to a slower but thread-safe version
2989
2990Bugfix
2991 * Fixed memory leak in RSA as a result of introduction of blinding
2992 * Fixed ssl_pkcs11_decrypt() prototype
2993 * Fixed MSVC project files
2994
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002995= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002996Changes
2997 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2998
2999Bugfix
3000 * Fixed potential memory leak when failing to resume a session
3001 * Fixed potential file descriptor leaks (found by Remi Gacogne)
3002 * Minor fixes
3003
3004Security
3005 * Fixed potential heap buffer overflow on large hostname setting
3006 * Fixed potential negative value misinterpretation in load_file()
3007 * RSA blinding on CRT operations to counter timing attacks
3008 (found by Cyril Arnaud and Pierre-Alain Fouque)
3009
Paul Bakkerde656232013-06-24 19:07:34 +02003010= Version 1.2.8 released 2013-06-19
3011Features
3012 * Parsing of PKCS#8 encrypted private key files
3013 * PKCS#12 PBE and derivation functions
3014 * Centralized module option values in config.h to allow user-defined
3015 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
3016
3017Changes
3018 * HAVEGE random generator disabled by default
3019 * Internally split up x509parse_key() into a (PEM) handler function
3020 and specific DER parser functions for the PKCS#1 and unencrypted
3021 PKCS#8 private key formats
3022 * Added mechanism to provide alternative implementations for all
3023 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Darryl Green11999bb2018-03-13 15:22:58 +00003024 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02003025 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
3026 old PBKDF2 module
3027
3028Bugfix
3029 * Secure renegotiation extension should only be sent in case client
3030 supports secure renegotiation
3031 * Fixed offset for cert_type list in ssl_parse_certificate_request()
3032 * Fixed const correctness issues that have no impact on the ABI
3033 * x509parse_crt() now better handles PEM error situations
3034 * ssl_parse_certificate() now calls x509parse_crt_der() directly
3035 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00003036 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02003037 * x509parse_crtpath() is now reentrant and uses more portable stat()
3038 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
3039 * Fixed values for 2-key Triple DES in cipher layer
3040 * ssl_write_certificate_request() can handle empty ca_chain
3041
3042Security
3043 * A possible DoS during the SSL Handshake, due to faulty parsing of
3044 PEM-encoded certificates has been fixed (found by Jack Lloyd)
3045
3046= Version 1.2.7 released 2013-04-13
3047Features
3048 * Ability to specify allowed ciphersuites based on the protocol version.
3049
3050Changes
3051 * Default Blowfish keysize is now 128-bits
3052 * Test suites made smaller to accommodate Raspberry Pi
3053
3054Bugfix
3055 * Fix for MPI assembly for ARM
3056 * GCM adapted to support sizes > 2^29
3057
Paul Bakker90f042d2013-03-11 11:38:44 +01003058= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01003059Bugfix
3060 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01003061 * Corrected GCM counter incrementation to use only 32-bits instead of
3062 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01003063 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01003064 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01003065 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerc0463502013-02-14 11:19:38 +01003066
Paul Bakkerb3869132013-02-28 17:21:01 +01003067Changes
3068 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
3069 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
3070 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01003071 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
3072 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01003073 * Re-added handling for SSLv2 Client Hello when the define
3074 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01003075 * The SSL session cache module (ssl_cache) now also retains peer_cert
3076 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01003077
Paul Bakkere47b34b2013-02-27 14:48:00 +01003078Security
3079 * Removed further timing differences during SSL message decryption in
3080 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01003081 * Removed timing differences due to bad padding from
3082 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
3083 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01003084
Paul Bakkerc7a2da42013-02-02 19:23:57 +01003085= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01003086Changes
3087 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01003088 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01003089 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01003090 * Sending of security-relevant alert messages that do not break
3091 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01003092 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01003093
Paul Bakker45829992013-01-03 14:52:21 +01003094Security
3095 * Removed timing differences during SSL message decryption in
3096 ssl_decrypt_buf() due to badly formatted padding
3097
Paul Bakker14c56a32013-01-25 17:11:37 +01003098= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01003099Changes
Paul Bakker68884e32013-01-07 18:20:04 +01003100 * More advanced SSL ciphersuite representation and moved to more dynamic
3101 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01003102 * Added ssl_handshake_step() to allow single stepping the handshake process
3103
Paul Bakker40628ba2013-01-03 10:50:31 +01003104Bugfix
3105 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01003106 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01003107 * Correctly handle CertificateRequest message in client for <= TLS 1.1
3108 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01003109
Paul Bakkerfb1ba782012-11-26 16:28:25 +01003110= Version 1.2.3 released 2012-11-26
3111Bugfix
3112 * Server not always sending correct CertificateRequest message
3113
Paul Bakkerdf5069c2012-11-24 12:20:19 +01003114= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01003115Changes
3116 * Added p_hw_data to ssl_context for context specific hardware acceleration
3117 data
Hanno Becker01a0e072017-07-26 11:49:40 +01003118 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01003119
Paul Bakker7c90da92012-11-23 14:02:40 +01003120Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01003121 * Fixed client authentication compatibility
3122 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01003123
Paul Bakker14926332012-11-20 10:58:09 +01003124= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00003125Changes
3126 * Depth that the certificate verify callback receives is now numbered
3127 bottom-up (Peer cert depth is 0)
3128
Paul Bakker7a2538e2012-11-02 10:59:36 +00003129Bugfixes
3130 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00003131 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00003132 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
3133 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01003134 * Fixed possible segfault in mpi_shift_r() (found by Manuel
3135 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00003136 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00003137
Paul Bakkerc9c5df92012-10-31 13:55:27 +00003138= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00003139Features
3140 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
3141 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
3142 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00003143 * Added support for wildcard certificates
3144 * Added support for multi-domain certificates through the X509 Subject
3145 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00003146 * Added preliminary ASN.1 buffer writing support
3147 * Added preliminary X509 Certificate Request writing support
3148 * Added key_app_writer example application
3149 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00003150 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00003151 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00003152 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00003153 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00003154 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00003155 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00003156 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00003157 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00003158 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00003159 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00003160 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00003161 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00003162 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00003163 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00003164 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00003165 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00003166 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00003167
Paul Bakker1504af52012-02-11 16:17:43 +00003168Changes
3169 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00003170 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00003171 * Fixed const-correctness mpi_get_bit()
3172 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00003173 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00003174 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00003175 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00003176 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
3177 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00003178 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00003179 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00003180 * Generalized external private key implementation handling (like PKCS#11)
3181 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00003182 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00003183 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00003184 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00003185
Paul Bakker37824582012-03-22 14:10:22 +00003186Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00003187 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
3188 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00003189 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00003190 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00003191 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
3192 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00003193 * Handle encryption with private key and decryption with public key as per
Darryl Green11999bb2018-03-13 15:22:58 +00003194 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00003195 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00003196 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00003197 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00003198 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00003199 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00003200 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00003201
Paul Bakker452d5322012-04-05 12:07:34 +00003202Security
Paul Bakker3c16db92012-07-05 13:58:08 +00003203 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
3204 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00003205
Paul Bakkerd93d28e2013-10-01 10:12:42 +02003206= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02003207Bugfix
3208 * Fixed potential memory leak when failing to resume a session
3209 * Fixed potential file descriptor leaks
3210
3211Security
3212 * Potential buffer-overflow for ssl_read_record() (independently found by
3213 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
3214 * Potential negative value misinterpretation in load_file()
3215 * Potential heap buffer overflow on large hostname setting
3216
Paul Bakker248fff52013-06-24 19:08:50 +02003217= Version 1.1.7 released on 2013-06-19
3218Changes
3219 * HAVEGE random generator disabled by default
3220
3221Bugfix
3222 * x509parse_crt() now better handles PEM error situations
3223 * ssl_parse_certificate() now calls x509parse_crt_der() directly
3224 instead of the x509parse_crt() wrapper that can also parse PEM
Darryl Green11999bb2018-03-13 15:22:58 +00003225 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02003226 * Fixed values for 2-key Triple DES in cipher layer
3227 * ssl_write_certificate_request() can handle empty ca_chain
3228
3229Security
3230 * A possible DoS during the SSL Handshake, due to faulty parsing of
3231 PEM-encoded certificates has been fixed (found by Jack Lloyd)
3232
3233= Version 1.1.6 released on 2013-03-11
3234Bugfix
3235 * Fixed net_bind() for specified IP addresses on little endian systems
3236
3237Changes
3238 * Allow enabling of dummy error_strerror() to support some use-cases
3239 * Debug messages about padding errors during SSL message decryption are
3240 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
3241
3242Security
3243 * Removed timing differences during SSL message decryption in
3244 ssl_decrypt_buf()
3245 * Removed timing differences due to bad padding from
3246 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
3247 operations
3248
Paul Bakker9d2bb652013-01-25 16:07:49 +01003249= Version 1.1.5 released on 2013-01-16
3250Bugfix
3251 * Fixed MPI assembly for SPARC64 platform
3252 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
3253 * mpi_add_abs() now correctly handles adding short numbers to long numbers
3254 with carry rollover
3255 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
3256 * Prevent reading over buffer boundaries on X509 certificate parsing
3257 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
3258 #52)
3259 * Fixed possible segfault in mpi_shift_r() (found by Manuel
3260 Pégourié-Gonnard)
3261 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
3262 Pégourié-Gonnard)
3263 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
3264 * Memory leak when using RSA_PKCS_V21 operations fixed
3265 * Handle encryption with private key and decryption with public key as per
3266 RFC 2313
3267 * Fixes for MSVC6
3268
3269Security
3270 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
3271 Vanderbeken)
3272
Paul Bakkerd5834bb2012-10-02 14:38:56 +00003273= Version 1.1.4 released on 2012-05-31
3274Bugfix
3275 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
3276 * Fixed potential heap corruption in x509_name allocation
3277 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
3278
Paul Bakkerfad38932012-05-08 09:04:04 +00003279= Version 1.1.3 released on 2012-04-29
3280Bugfix
3281 * Fixed random MPI generation to not generate more size than requested.
3282
3283= Version 1.1.2 released on 2012-04-26
3284Bugfix
3285 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
3286 Hui Dong)
3287
3288Security
3289 * Fixed potential memory corruption on miscrafted client messages (found by
3290 Frama-C team at CEA LIST)
3291 * Fixed generation of DHM parameters to correct length (found by Ruslan
3292 Yushchenko)
3293
Paul Bakker99955bf2012-01-23 09:31:41 +00003294= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00003295Bugfix
3296 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
3297 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00003298 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00003299 * Fixed multiple compiler warnings for VS6 and armcc
3300 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00003301
Paul Bakker08a50882011-12-22 09:43:57 +00003302= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00003303Features
3304 * Added ssl_session_reset() to allow better multi-connection pools of
3305 SSL contexts without needing to set all non-connection-specific
Darryl Green11999bb2018-03-13 15:22:58 +00003306 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00003307 * Added ssl_set_max_version() to allow clients to offer a lower maximum
3308 supported version to a server to help buggy server implementations.
Darryl Green11999bb2018-03-13 15:22:58 +00003309 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00003310 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
3311 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00003312 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00003313 * Added a generic entropy accumulator that provides support for adding
3314 custom entropy sources and added some generic and platform dependent
Darryl Green11999bb2018-03-13 15:22:58 +00003315 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00003316
Paul Bakkerca6f3e22011-10-06 13:11:08 +00003317Changes
3318 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00003319 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
3320 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00003321 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00003322 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00003323 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00003324 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
3325 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00003326 * Changed the defined key-length of DES ciphers in cipher.h to include the
3327 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00003328 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00003329 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00003330 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
3331 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00003332 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
3333 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00003334 * Changed the used random function pointer to more flexible format. Renamed
3335 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01003336 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00003337 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00003338 * Added permissive certificate parsing to x509parse_crt() and
3339 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01003340 encountering a parse-error. Beware that the meaning of return values has
3341 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00003342 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00003343
Paul Bakkerfa1c5922011-10-06 14:18:49 +00003344Bugfix
3345 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
3346 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00003347 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
3348 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00003349 * Allowed X509 key usage parsing to accept 4 byte values instead of the
3350 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00003351 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
3352 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00003353 * If certificate serial is longer than 32 octets, serial number is now
3354 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00003355 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00003356 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00003357 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00003358 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00003359
Paul Bakker968bc982011-07-27 17:03:00 +00003360= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00003361Features
3362 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00003363 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00003364
Paul Bakker42e59812011-06-09 15:55:41 +00003365Changes
3366 * The generic cipher and message digest layer now have normal error
3367 codes instead of integers
3368
Paul Bakker887bd502011-06-08 13:10:54 +00003369Bugfix
3370 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
3371 #18)
3372
Paul Bakker828acb22011-05-27 09:25:42 +00003373= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00003374Features
3375 * Added additional Cipher Block Modes to symmetric ciphers
3376 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01003377 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00003378 * Functions requiring File System functions can now be disabled
3379 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00003380 * A error_strerror function() has been added to translate between
3381 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00003382 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
3383 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00003384 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00003385
Paul Bakker23986e52011-04-24 08:57:21 +00003386Changes
3387 * Major argument / variable rewrite. Introduced use of size_t
3388 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01003389 better unsigned / signed use. Renamed internal bigint types
3390 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00003391 * mpi_init() and mpi_free() now only accept a single MPI
3392 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00003393 * The error codes have been remapped and combining error codes
3394 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01003395 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00003396 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
3397 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01003398 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
3399 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
3400 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
3401 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00003402 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
3403 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01003404 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00003405
Paul Bakker3efa5752011-04-01 12:23:26 +00003406= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00003407Features
3408 * Added support for PKCS#1 v2.1 encoding and thus support
3409 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00003410 * Reading of Public Key files incorporated into default x509
3411 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00003412 * Added mpi_fill_random() for centralized filling of big numbers
3413 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00003414
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003415Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01003416 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003417 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01003418 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00003419 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01003420 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003421
3422Bugfix
3423 * Debug output of MPI's now the same independent of underlying
3424 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01003425 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00003426 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
3427 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00003428 * Fixed proper handling of RSASSA-PSS verification with variable
3429 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00003430
Paul Bakker345a6fe2011-02-28 21:20:02 +00003431= Version 0.99-pre3 released on 2011-02-28
3432This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00003433Features
3434 * Parsing PEM private keys encrypted with DES and AES
3435 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00003436 * Added crl_app program to allow easy reading and
3437 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00003438
3439Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01003440 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00003441 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01003442 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00003443
Paul Bakker400ff6f2011-02-20 10:40:16 +00003444Bugfixes
3445 * Corrected parsing of UTCTime dates before 1990 and
3446 after 1950
3447 * Support more exotic OID's when parsing certificates
Darryl Green11999bb2018-03-13 15:22:58 +00003448 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003449 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003450 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003451 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00003452 * Do not bail out if no client certificate specified. Try
3453 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01003454 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00003455
Paul Bakker345a6fe2011-02-28 21:20:02 +00003456Security fixes
3457 * Fixed a possible Man-in-the-Middle attack on the
3458 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01003459 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00003460
Paul Bakker9fc46592011-01-30 16:59:02 +00003461= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00003462Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00003463Note: Most of these features have been donated by Fox-IT
3464 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00003465 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00003466 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00003467 certificate fields, including Key Usage
3468 * Improved certificate verification and verification
3469 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00003470 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00003471 * Improvements to support integration in other
3472 applications:
3473 + Added generic message digest and cipher wrapper
3474 + Improved information about current capabilities,
3475 status, objects and configuration
3476 + Added verification callback on certificate chain
3477 verification to allow external blacklisting
Darryl Green11999bb2018-03-13 15:22:58 +00003478 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00003479 * Added support for PKCS#11 through the use of the
3480 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00003481
Paul Bakkerb6194992011-01-16 21:40:22 +00003482Changes
3483 * x509parse_time_expired() checks time in addition to
3484 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00003485 * The ciphers member of ssl_context and the cipher member
3486 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01003487 ciphersuite respectively. This clarifies the difference
3488 with the generic cipher layer and is better naming
3489 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00003490
Paul Bakker99ed6782011-01-05 14:48:42 +00003491= Version 0.14.0 released on 2010-08-16
3492Features
3493 * Added support for SSL_EDH_RSA_AES_128_SHA and
3494 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
3495 * Added compile-time and run-time version information
3496 * Expanded ssl_client2 arguments for more flexibility
3497 * Added support for TLS v1.1
3498
3499Changes
3500 * Made Makefile cleaner
3501 * Removed dependency on rand() in rsa_pkcs1_encrypt().
3502 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01003503 changed the prototype of rsa_pkcs1_encrypt(),
3504 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00003505 * Some SSL defines were renamed in order to avoid
3506 future confusion
3507
3508Bug fixes
3509 * Fixed CMake out of source build for tests (found by
3510 kkert)
3511 * rsa_check_private() now supports PKCS1v2 keys as well
3512 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
3513 generator
3514
3515= Version 0.13.1 released on 2010-03-24
3516Bug fixes
3517 * Fixed Makefile in library that was mistakenly merged
3518 * Added missing const string fixes
3519
3520= Version 0.13.0 released on 2010-03-21
3521Features
3522 * Added option parsing for host and port selection to
3523 ssl_client2
3524 * Added support for GeneralizedTime in X509 parsing
3525 * Added cert_app program to allow easy reading and
3526 printing of X509 certificates from file or SSL
3527 connection.
3528
3529Changes
3530 * Added const correctness for main code base
3531 * X509 signature algorithm determination is now
3532 in a function to allow easy future expansion
3533 * Changed symmetric cipher functions to
3534 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01003535 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00003536 * Added reset function for HMAC context as speed-up
3537 for specific use-cases
3538
3539Bug fixes
3540 * Fixed bug resulting in failure to send the last
3541 certificate in the chain in ssl_write_certificate() and
3542 ssl_write_certificate_request() (found by fatbob)
3543 * Added small fixes for compiler warnings on a Mac
3544 (found by Frank de Brabander)
3545 * Fixed algorithmic bug in mpi_is_prime() (found by
3546 Smbat Tonoyan)
3547
3548= Version 0.12.1 released on 2009-10-04
3549Changes
3550 * Coverage test definitions now support 'depends_on'
3551 tagging system.
3552 * Tests requiring specific hashing algorithms now honor
3553 the defines.
3554
3555Bug fixes
3556 * Changed typo in #ifdef in x509parse.c (found
3557 by Eduardo)
3558
3559= Version 0.12.0 released on 2009-07-28
3560Features
3561 * Added CMake makefiles as alternative to regular Makefiles.
3562 * Added preliminary Code Coverage tests for AES, ARC4,
3563 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3564 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3565 and X509parse.
3566
3567Changes
3568 * Error codes are not (necessarily) negative. Keep
3569 this is mind when checking for errors.
3570 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3571 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3572 * Changed interface for AES and Camellia setkey functions
3573 to indicate invalid key lengths.
3574
3575Bug fixes
3576 * Fixed include location of endian.h on FreeBSD (found by
3577 Gabriel)
3578 * Fixed include location of endian.h and name clash on
3579 Apples (found by Martin van Hensbergen)
3580 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
3581 required HMAC ipad and opad variables are not cleared.
3582 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01003583 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00003584 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3585 Bathgate).
3586 * Fixed incorrect handling of negative strings in
3587 mpi_read_string() (found by code coverage tests).
3588 * Fixed segfault on handling empty rsa_context in
3589 rsa_check_pubkey() and rsa_check_privkey() (found by
3590 code coverage tests).
3591 * Fixed incorrect handling of one single negative input
3592 value in mpi_add_abs() (found by code coverage tests).
3593 * Fixed incorrect handling of negative first input
3594 value in mpi_sub_abs() (found by code coverage tests).
3595 * Fixed incorrect handling of negative first input
3596 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3597 change also affects mpi_write_string() (found by code
3598 coverage tests).
3599 * Corrected is_prime() results for 0, 1 and 2 (found by
3600 code coverage tests).
3601 * Fixed Camellia and XTEA for 64-bit Windows systems.
3602
3603= Version 0.11.1 released on 2009-05-17
3604 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3605 SHA-512 in rsa_pkcs1_sign()
3606
3607= Version 0.11.0 released on 2009-05-03
3608 * Fixed a bug in mpi_gcd() so that it also works when both
3609 input numbers are even and added testcases to check
3610 (found by Pierre Habouzit).
3611 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3612 one way hash functions with the PKCS#1 v1.5 signing and
3613 verification.
3614 * Fixed minor bug regarding mpi_gcd located within the
3615 POLARSSL_GENPRIME block.
3616 * Fixed minor memory leak in x509parse_crt() and added better
3617 handling of 'full' certificate chains (found by Mathias
3618 Olsson).
3619 * Centralized file opening and reading for x509 files into
3620 load_file()
3621 * Made definition of net_htons() endian-clean for big endian
3622 systems (Found by Gernot).
3623 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003624 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003625 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3626 responsible for crashes and unwanted behaviour.
3627 * Added support for Certificate Revocation List (CRL) parsing.
3628 * Added support for CRL revocation to x509parse_verify() and
3629 SSL/TLS code.
3630 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3631 (found by Felix von Leitner).
3632
3633= Version 0.10.0 released on 2009-01-12
3634 * Migrated XySSL to PolarSSL
3635 * Added XTEA symmetric cipher
3636 * Added Camellia symmetric cipher
3637 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3638 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3639 * Fixed dangerous bug that can cause a heap overflow in
3640 rsa_pkcs1_decrypt (found by Christophe Devine)
3641
3642================================================================
3643XySSL ChangeLog
3644
3645= Version 0.9 released on 2008-03-16
3646
3647 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3648 * Enabled support for large files by default in aescrypt2.c
3649 * Preliminary openssl wrapper contributed by David Barrett
3650 * Fixed a bug in ssl_write() that caused the same payload to
3651 be sent twice in non-blocking mode when send returns EAGAIN
3652 * Fixed ssl_parse_client_hello(): session id and challenge must
3653 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3654 * Added user-defined callback debug function (Krystian Kolodziej)
3655 * Before freeing a certificate, properly zero out all cert. data
3656 * Fixed the "mode" parameter so that encryption/decryption are
3657 not swapped on PadLock; also fixed compilation on older versions
3658 of gcc (bug reported by David Barrett)
3659 * Correctly handle the case in padlock_xcryptcbc() when input or
Antonin Décimod5f47592019-01-23 15:24:37 +01003660 output data is non-aligned by falling back to the software
Paul Bakker99ed6782011-01-05 14:48:42 +00003661 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3662 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3663 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3664 Matthew Page who reported several bugs
3665 * Fixed x509_get_ext() to accept some rare certificates which have
3666 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3667 * Added support on the client side for the TLS "hostname" extension
3668 (patch contributed by David Patino)
3669 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3670 string is passed as the CN (bug reported by spoofy)
3671 * Added an option to enable/disable the BN assembly code
3672 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3673 * Disabled obsolete hash functions by default (MD2, MD4); updated
3674 selftest and benchmark to not test ciphers that have been disabled
3675 * Updated x509parse_cert_info() to correctly display byte 0 of the
3676 serial number, setup correct server port in the ssl client example
3677 * Fixed a critical denial-of-service with X.509 cert. verification:
3678 peer may cause xyssl to loop indefinitely by sending a certificate
3679 for which the RSA signature check fails (bug reported by Benoit)
3680 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3681 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3682 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3683 * Modified ssl_parse_client_key_exchange() to protect against
3684 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3685 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3686 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3687 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3688 David Barrett and Dusan Semen
3689
3690= Version 0.8 released on 2007-10-20
3691
3692 * Modified the HMAC functions to handle keys larger
3693 than 64 bytes, thanks to Stephane Desneux and gary ng
3694 * Fixed ssl_read_record() to properly update the handshake
3695 message digests, which fixes IE6/IE7 client authentication
3696 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3697 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3698 * Added user-defined callbacks for handling I/O and sessions
3699 * Added lots of debugging output in the SSL/TLS functions
3700 * Added preliminary X.509 cert. writing by Pascal Vizeli
3701 * Added preliminary support for the VIA PadLock routines
3702 * Added AES-CFB mode of operation, contributed by chmike
3703 * Added an SSL/TLS stress testing program (ssl_test.c)
3704 * Updated the RSA PKCS#1 code to allow choosing between
3705 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3706 * Updated ssl_read() to skip 0-length records from OpenSSL
3707 * Fixed the make install target to comply with *BSD make
3708 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3709 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3710 * Fixed a long standing memory leak in mpi_is_prime()
3711 * Replaced realloc with malloc in mpi_grow(), and set
3712 the sign of zero as positive in mpi_init() (reported
3713 by Jonathan M. McCune)
3714
3715= Version 0.7 released on 2007-07-07
3716
3717 * Added support for the MicroBlaze soft-core processor
3718 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3719 connections from being established with non-blocking I/O
3720 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3721 * Fixed the "PIC register ebx clobbered in asm" bug
3722 * Added HMAC starts/update/finish support functions
3723 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3724 * Fixed the net_set_*block routines, thanks to Andreas
3725 * Added a few demonstration programs: md5sum, sha1sum,
3726 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3727 * Added new bignum import and export helper functions
3728 * Rewrote README.txt in program/ssl/ca to better explain
3729 how to create a test PKI
3730
3731= Version 0.6 released on 2007-04-01
3732
3733 * Ciphers used in SSL/TLS can now be disabled at compile
3734 time, to reduce the memory footprint on embedded systems
3735 * Added multiply assembly code for the TriCore and modified
3736 havege_struct for this processor, thanks to David Patiño
3737 * Added multiply assembly code for 64-bit PowerPCs,
3738 thanks to Peking University and the OSU Open Source Lab
3739 * Added experimental support of Quantum Cryptography
3740 * Added support for autoconf, contributed by Arnaud Cornet
3741 * Fixed "long long" compilation issues on IA-64 and PPC64
3742 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3743 was not being correctly defined on ARM and MIPS
3744
3745= Version 0.5 released on 2007-03-01
3746
3747 * Added multiply assembly code for SPARC and Alpha
3748 * Added (beta) support for non-blocking I/O operations
3749 * Implemented session resuming and client authentication
3750 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3751 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3752 * Improved the performance of the EDH key exchange
3753 * Fixed a bug that caused valid packets with a payload
3754 size of 16384 bytes to be rejected
3755
3756= Version 0.4 released on 2007-02-01
3757
3758 * Added support for Ephemeral Diffie-Hellman key exchange
3759 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3760 * Various improvement to the modular exponentiation code
3761 * Rewrote the headers to generate the API docs with doxygen
3762 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3763 generated) and in ssl_parse_client_hello (max. client
3764 version was not properly set), thanks to Didier Rebeix
3765 * Fixed another bug in ssl_parse_client_hello: clients with
3766 cipherlists larger than 96 bytes were incorrectly rejected
3767 * Fixed a couple memory leak in x509_read.c
3768
3769= Version 0.3 released on 2007-01-01
3770
3771 * Added server-side SSLv3 and TLSv1.0 support
3772 * Multiple fixes to enhance the compatibility with g++,
3773 thanks to Xosé Antón Otero Ferreira
3774 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003775 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003776 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3777 * Updated timing.c for improved compatibility with i386
3778 and 486 processors, thanks to Arnaud Cornet
3779
3780= Version 0.2 released on 2006-12-01
3781
3782 * Updated timing.c to support ARM and MIPS arch
3783 * Updated the MPI code to support 8086 on MSVC 1.5
3784 * Added the copyright notice at the top of havege.h
3785 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3786 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3787 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3788 * Fixed a bug in rsa_check_privkey that would wrongly cause
3789 valid RSA keys to be dismissed (thanks to oldwolf)
3790 * Fixed a bug in mpi_is_prime that caused some primes to fail
3791 the Miller-Rabin primality test
3792
3793 I'd also like to thank Younès Hafri for the CRUX linux port,
3794 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3795 who maintains the Debian package :-)
3796
3797= Version 0.1 released on 2006-11-01