blob: 28467be66000fdd057b6f2c2700dac67e7d500f9 [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
Jaeden Amero7e6931d2020-01-24 18:20:22 +00003= mbed TLS 2.7.X branch released XXXX-XX-XX
4
Gilles Peskinef664c4d2020-01-31 12:05:53 +01005Security
6 * To avoid a side channel vulnerability when parsing an RSA private key,
7 read all the CRT parameters from the DER structure rather than
8 reconstructing them. Found by Alejandro Cabrera Aldaya and Billy Bob
9 Brumley. Reported and fix contributed by Jack Lloyd.
10 ARMmbed/mbed-crypto#352
11
Jaeden Amero7e6931d2020-01-24 18:20:22 +000012Bugfix
Gilles Peskinef4dd8a92020-01-22 19:04:19 +010013 * Fix an unchecked call to mbedtls_md() in the x509write module.
Manuel Pégourié-Gonnard08f06eb2020-02-19 09:31:38 +010014 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
15 RSA keys that would later be rejected by functions expecting private
16 keys. Found by Catena cyber using oss-fuzz (issue 20467).
17 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
18 RSA keys with invalid values by silently fixing those values.
Jaeden Amero7e6931d2020-01-24 18:20:22 +000019
Jaeden Amerod8180f82020-01-15 16:59:10 +000020= mbed TLS 2.7.13 branch released 2020-01-15
Jaeden Ameroa5079102018-12-06 15:58:27 +000021
Janos Follath5cf41f82019-10-25 08:53:01 +010022Security
23 * Fix side channel vulnerability in ECDSA. Our bignum implementation is not
24 constant time/constant trace, so side channel attacks can retrieve the
25 blinded value, factor it (as it is smaller than RSA keys and not guaranteed
26 to have only large prime factors), and then, by brute force, recover the
27 key. Reported by Alejandro Cabrera Aldaya and Billy Brumley.
Andrzej Kurek07597362019-11-12 03:23:51 -050028 * Zeroize local variables in mbedtls_internal_aes_encrypt() and
29 mbedtls_internal_aes_decrypt() before exiting the function. The value of
30 these variables can be used to recover the last round key. To follow best
31 practice and to limit the impact of buffer overread vulnerabilities (like
32 Heartbleed) we need to zeroize them before exiting the function.
33 Issue reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihang) Bai,
34 Grant Hernandez, and Kevin Butler (University of Florida) and
35 Dave Tian (Purdue University).
Janos Follathdfa4d712019-11-11 14:18:18 +000036 * Fix side channel vulnerability in ECDSA key generation. Obtaining precise
37 timings on the comparison in the key generation enabled the attacker to
38 learn leading bits of the ephemeral key used during ECDSA signatures and to
39 recover the private key.
Gilles Peskineb2be1fc2019-11-28 09:45:32 +010040 * Catch failure of AES functions in mbedtls_ctr_drbg_random(). Uncaught
41 failures could happen with alternative implementations of AES. Bug
42 reported and fix proposed by Johan Uppman Bruce and Christoffer Lauri,
43 Sectra.
Janos Follath5cf41f82019-10-25 08:53:01 +010044
Gilles Peskine093aa512019-10-18 16:40:10 +020045Bugfix
46 * Support mbedtls_hmac_drbg_set_entropy_len() and
47 mbedtls_ctr_drbg_set_entropy_len() before the DRBG is seeded. Before,
48 the initial seeding always reset the entropy length to the compile-time
49 default.
50
Jaeden Amero2fc6cf52019-10-02 17:56:38 +010051Changes
52 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
53 from the cipher abstraction layer. Fixes #2198.
Gilles Peskine97edf5e2019-10-02 19:00:29 +020054 * Clarify how the interface of the CTR_DRBG and HMAC modules relates to
55 NIST SP 800-90A. In particular CTR_DRBG requires an explicit nonce
56 to achieve a 256-bit strength if MBEDTLS_ENTROPY_FORCE_SHA256 is set.
Jaeden Amero2fc6cf52019-10-02 17:56:38 +010057
Jaeden Amerod7bd10d2019-09-06 13:28:28 +010058= mbed TLS 2.7.12 branch released 2019-09-06
Simon Butcher8f902782018-12-28 12:01:09 +000059
k-stachowiak589de372019-07-10 11:43:23 +020060Security
61 * Fix a missing error detection in ECJPAKE. This could have caused a
62 predictable shared secret if a hardware accelerator failed and the other
63 side of the key exchange had a similar bug.
Janos Follath660f4f82019-01-16 16:06:18 +000064 * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to
65 implement blinding. Because of this for the same key and message the same
66 blinding value was generated. This reduced the effectiveness of the
67 countermeasure and leaked information about the private key through side
68 channels. Reported by Jack Lloyd.
Gilles Peskine93884542018-08-11 00:51:04 +020069 * When writing a private EC key, use a constant size for the private
70 value, as specified in RFC 5915. Previously, the value was written
71 as an ASN.1 INTEGER, which caused the size of the key to leak
72 about 1 bit of information on average and could cause the value to be
73 1 byte too large for the output buffer.
Janos Follath660f4f82019-01-16 16:06:18 +000074
Janos Follatha62744d2019-01-21 10:45:48 +000075API Changes
76 * The new function mbedtls_ecdsa_sign_det_ext() is similar to
77 mbedtls_ecdsa_sign_det() but allows passing an external RNG for the
78 purpose of blinding.
79 * The new function mbedtls_ecp_gen_privkey() allows to generate a private
80 key without generating the public part of the pair.
k-stachowiak589de372019-07-10 11:43:23 +020081
Simon Butcher8f902782018-12-28 12:01:09 +000082Bugfix
Simon Butcher57f2f692019-04-18 15:57:30 +010083 * Fix to allow building test suites with any warning that detects unused
84 functions. Fixes #1628.
Jaeden Amero0b203572019-06-21 13:26:34 +010085 * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
86 * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
87 * Fix Visual Studio Release x64 build configuration by inheriting
88 PlatformToolset from the project configuration. Fixes #1430 reported by
89 irwir.
90 * Enable Suite B with subset of ECP curves. Make sure the code compiles even
91 if some curves are not defined. Fixes #1591 reported by dbedev.
Gilles Peskine990ea3d2019-06-17 15:15:40 +020092 * Fix misuse of signed arithmetic in the HAVEGE module. #2598
Gilles Peskinecabbd2e2019-08-03 14:08:46 +020093 * Update test certificates that were about to expire. Reported by
94 Bernhard M. Wiedemann in #2357.
Gilles Peskine29c317b2019-07-19 17:26:55 +020095 * Make NV seed test support MBEDTLS_ENTROPY_FORCE_SHA256.
Jaeden Amero68cfefe2019-09-03 16:32:06 +010096 * Fix memory leak in in mpi_miller_rabin(). Contributed by
97 Jens Wiklander <jens.wiklander@linaro.org> in #2363.
Jaeden Amero0b203572019-06-21 13:26:34 +010098
99Changes
100 * Make `make clean` clean all programs always. Fixes #1862.
Simon Butcher8f902782018-12-28 12:01:09 +0000101
Jaeden Amero6794f682019-06-11 17:26:05 +0100102= mbed TLS 2.7.11 branch released 2019-06-11
Jaeden Ameroa5079102018-12-06 15:58:27 +0000103
Gilles Peskine0efa8562018-11-07 22:39:16 +0100104Security
105 * Make mbedtls_ecdh_get_params return an error if the second key
106 belongs to a different group from the first. Before, if an application
107 passed keys that belonged to different group, the first key's data was
108 interpreted according to the second group, which could lead to either
109 an error or a meaningless output from mbedtls_ecdh_get_params. In the
110 latter case, this could expose at most 5 bits of the private key.
111
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000112Bugfix
113 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
114 mbedTLS configuration only SHA-2 signed certificates are accepted.
115 This certificate is used in the demo server programs, which lead the
116 client programs to fail at the peer's certificate verification
117 due to an unacceptable hash signature. The certificate has been
118 updated to one that is SHA-256 signed. Fix contributed by
119 Illya Gerasymchuk.
120 * Fix private key DER output in the key_app_writer example. File contents
121 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
122 Christian Walther in #2239.
Jaeden Amero415255f2019-04-05 13:48:19 +0100123 * Fix potential memory leak in X.509 self test. Found and fixed by
124 Junhwan Park, #2106.
Jaeden Amero99b679f2019-04-05 14:09:25 +0100125 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Amero4430b252019-04-08 11:23:50 +0100126 used with negative inputs. Found by Guido Vranken in #2404. Credit to
127 OSS-Fuzz.
Jaeden Amerof3df5b82019-04-05 14:17:08 +0100128 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
129 either used both encrypt and decrypt key schedules, or which perform padding.
130 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amero4ff2eb32019-04-05 14:24:51 +0100131 * Fix incorrect default port number in ssl_mail_client example's usage.
132 Found and fixed by irwir. #2337
Hanno Beckerb2ba79a2018-10-15 12:23:02 +0100133 * Add missing parentheses around parameters in the definition of the
134 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
135 in case operators binding less strongly than subtraction were used
136 for the parameter.
Jaeden Amero555a9252019-04-24 11:21:02 +0100137 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
138 sni entry parameter. Reported by inestlerode in #560.
Hanno Beckerd7bc9ff2019-06-04 10:27:43 +0100139 * Fix missing bounds checks in X.509 parsing functions that could
140 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
141 * Fix multiple X.509 functions previously returning ASN.1 low-level error
142 codes to always wrap these codes into X.509 high level error codes before
143 returning. Fixes #2431.
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000144
145Changes
146 * Return from various debugging routines immediately if the
147 provided SSL context is unset.
148 * Remove dead code from bignum.c in the default configuration.
149 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
150 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
151 Contributed by Peter Kolbus (Garmin).
k-stachowiak5b001e02019-04-29 12:58:53 +0200152 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
153 improve clarity. Fixes #2258.
Jaeden Amero334ab9b2019-06-14 08:48:10 +0100154 * Improve debug output of ssl_client2 and ssl_server2 in case suitable
155 test CRTs are available because MBEDTLS_PEM_PARSE_C is disabled.
156 Fixes #2254.
Hanno Becker253fbfa2019-05-30 11:10:44 +0100157 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000158
Jaeden Amerob4686b42019-03-19 16:18:01 +0000159= mbed TLS 2.7.10 branch released 2019-03-19
Jaeden Ameroa5079102018-12-06 15:58:27 +0000160
Manuel Pégourié-Gonnard47237342019-03-01 10:34:21 +0100161Features
162 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
163 from the default list (enabled by default). See
164 https://sweet32.info/SWEET32_CCS16.pdf.
165
Jaeden Ameroa5079102018-12-06 15:58:27 +0000166Bugfix
Simon Butcher7f899b42019-01-08 15:31:37 +0000167 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
168 Raised as a comment in #1996.
Simon Butcherc5b6c2f2019-01-23 09:51:48 +0100169 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Masashi Honma4a471122018-12-28 05:40:17 +0900170 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
Ron Eldor7c733f82018-11-27 10:33:38 +0200171 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
172 Fixes #2190.
Andres Amaya Garciafc547ff2018-09-26 10:59:20 +0100173 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
174 mbedtls_asn1_write_bitstring().
175 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
176 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
177 correctly as trailing zeroes were not accounted for as unused bits in the
178 leading content octet. Fixes #1610.
Simon Butcher7f899b42019-01-08 15:31:37 +0000179
Simon Butcher32331302019-01-23 09:53:41 +0100180Changes
181 * Include configuration file in all header files that use configuration,
182 instead of relying on other header files that they include.
183 Inserted as an enhancement for #1371
Simon Butcherff719bb2018-09-30 15:44:52 +0100184 * Add support for alternative CSR headers, as used by Microsoft and defined
185 in RFC 7468. Found by Michael Ernst. Fixes #767.
Jeffrey Martin55ab90d2019-01-15 09:02:14 -0600186 * Fix clobber list in MIPS assembly for large integer multiplication.
187 Previously, this could lead to functionally incorrect assembly being
188 produced by some optimizing compilers, showing up as failures in
189 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martinf7fe1442019-01-16 09:26:15 -0600190 by Aurelien Jarno and submitted by Jeffrey Martin.
k-stachowiak16373da2019-02-05 10:03:20 +0100191 * Reduce the complexity of the timing tests. They were assuming more than the
192 underlying OS actually guarantees.
Andres Amaya Garcia493a0dc2019-02-19 20:14:00 +0000193 * Ciphersuites based on 3DES now have the lowest priority by default when
194 they are enabled.
Simon Butcher32331302019-01-23 09:53:41 +0100195
Simon Butcherb22a8082018-12-21 10:52:37 +0000196= mbed TLS 2.7.9 branch released 2018-12-21
Jaeden Ameroa5079102018-12-06 15:58:27 +0000197
198Bugfix
199 * Fix for Clang, which was reporting a warning for the bignum.c inline
200 assembly for AMD64 targets creating string literals greater than those
201 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Jaeden Ameroa7d16ba2018-12-06 16:02:06 +0000202 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
203 through qemu user emulation. Reported and fix suggested by randombit
204 in #1212. Fixes #1212.
Jaeden Amero93bfd1d2018-12-06 16:06:21 +0000205 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
206 This could lead to a buffer overflow, but only in case ticket authentication
207 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Ameroa7e5cbd2018-12-06 16:11:22 +0000208 * Add explicit integer to enumeration type casts to example program
209 programs/pkey/gen_key which previously led to compilation failure
210 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Simon Butcher3112d102018-12-20 01:16:16 +0000211 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
212 of check for certificate/key matching. Reported by Attila Molnar, #507.
Jaeden Ameroa5079102018-12-06 15:58:27 +0000213
Simon Butcher4a908ca2018-12-01 22:27:25 +0000214= mbed TLS 2.7.8 branch released 2018-11-30
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300215
Gilles Peskineae97c252018-10-03 13:40:16 +0200216Security
Gilles Peskine5d2391e2018-10-05 15:42:52 +0200217 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
218 decryption that could lead to a Bleichenbacher-style padding oracle
Gilles Peskine813bdeb2018-11-29 12:45:01 +0100219 attack. In TLS, this affects servers that accept ciphersuites based on
220 RSA decryption (i.e. ciphersuites whose name contains RSA but not
Simon Butcherbe16e382018-12-01 22:46:55 +0000221 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
222 (University of Adelaide), Daniel Genkin (University of Michigan),
223 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
224 (University of Adelaide, Data61). The attack is described in more detail
225 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
Gilles Peskine5db9c832018-11-29 12:46:05 +0100226 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
227 via branching and memory access patterns. An attacker who could submit
228 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
229 of the decryption and not its result could nonetheless decrypt RSA
230 plaintexts and forge RSA signatures. Other asymmetric algorithms may
231 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
232 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
Gilles Peskinef249e372018-09-11 18:53:58 +0200233 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
234 modules.
235
Gilles Peskine94a779b2018-09-13 22:27:12 +0200236API Changes
237 * The new functions mbedtls_ctr_drbg_update_ret() and
238 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
239 and mbedtls_hmac_drbg_update() respectively, but the new functions
240 report errors whereas the old functions return void. We recommend that
241 applications use the new functions.
Gilles Peskineae97c252018-10-03 13:40:16 +0200242
Simon Butcher20f30d92018-11-19 18:32:22 +0000243= mbed TLS 2.7.7 branch released 2018-11-19
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300244
Hanno Becker0a08a4a2018-11-02 09:36:45 +0000245Security
Simon Butcher357fbee2018-11-08 13:47:21 +0000246 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcher7fd58a92018-11-19 16:01:15 +0000247 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher357fbee2018-11-08 13:47:21 +0000248 name and the CA's subject name differed in their string encoding (e.g.,
249 one using PrintableString and the other UTF8String) or in the choice of
250 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
251 #1784.
Simon Butcher7fd58a92018-11-19 16:01:15 +0000252 * Fix a flawed bounds check in server PSK hint parsing. In case the
253 incoming message buffer was placed within the first 64KiB of address
254 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
255 to trigger a memory access up to 64KiB beyond the incoming message buffer,
256 potentially leading to application crash or information disclosure.
Simon Butcher357fbee2018-11-08 13:47:21 +0000257 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
258 previous settings for the number of rounds made it practical for an
259 adversary to construct non-primes that would be erroneously accepted as
260 primes with high probability. This does not have an impact on the
Simon Butcher7fd58a92018-11-19 16:01:15 +0000261 security of TLS, but can matter in other contexts with numbers chosen
262 potentially by an adversary that should be prime and can be validated.
Simon Butcher357fbee2018-11-08 13:47:21 +0000263 For example, the number of rounds was enough to securely generate RSA key
264 pairs or Diffie-Hellman parameters, but was insufficient to validate
265 Diffie-Hellman parameters properly.
266 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
267 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Becker0a08a4a2018-11-02 09:36:45 +0000268
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300269Bugfix
270 * Fix failure in hmac_drbg in the benchmark sample application, when
271 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Simon Butcher651902d2018-09-26 22:35:51 +0100272 * Fix a bug in the update function for SSL ticket keys which previously
273 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Hanno Becker7e1913b2018-10-17 14:53:05 +0100274 * Fix a bug in the record decryption routine ssl_decrypt_buf()
Simon Butcher7fd58a92018-11-19 16:01:15 +0000275 which led to accepting properly authenticated but improperly
Hanno Becker7e1913b2018-10-17 14:53:05 +0100276 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker591cdb02018-10-09 12:44:35 +0100277 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
278 application leading to a memory leak in case both
279 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
280 Fixes #2069.
Hanno Becker16a77622018-10-05 09:51:36 +0100281 * Fix memory leak and freeing without initialization in the example
282 program programs/x509/cert_write. Fixes #1422.
Simon Butcher357fbee2018-11-08 13:47:21 +0000283 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
284 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes for #1091.
Hanno Becker74a1c4b2018-10-15 13:20:28 +0100285 * Zeroize memory used for reassembling handshake messages after use.
286 * Use `mbedtls_zeroize()` instead of `memset()` for zeroization of
287 sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Becker85adbfa2018-10-11 10:54:45 +0100288 * Fix compilation failure for configurations which use compile time
289 replacements of standard calloc/free functions through the macros
290 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
291 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300292
Simon Butcherfa5054f2018-09-26 22:56:03 +0100293Changes
294 * Add tests for session resumption in DTLS.
Simon Butcherf73b4372018-09-26 22:57:24 +0100295 * Close a test gap in (D)TLS between the client side and the server side:
296 test the handling of large packets and small packets on the client side
297 in the same way as on the server side.
Simon Butcher7c9086b2018-05-12 20:28:56 +0100298 * Change the dtls_client and dtls_server samples to work by default over
299 IPv6 and optionally by a build option over IPv4.
Simon Butcher7b28abc2018-11-04 18:51:49 +0000300 * Change the use of Windows threading to use Microsoft Visual C++ runtime
301 calls, rather than Win32 API calls directly. This is necessary to avoid
302 conflict with C runtime usage. Found and fixed by irwir.
Hanno Becker0b0753c2018-10-30 10:08:33 +0000303 * Improve documentation of mbedtls_ssl_get_verify_result().
304 Fixes #517 reported by github-monoculture.
Simon Butcherfa5054f2018-09-26 22:56:03 +0100305
Simon Butcher34997fd2018-08-31 16:07:23 +0100306= mbed TLS 2.7.6 branch released 2018-08-31
Simon Butcher51a46b92018-07-30 22:15:14 +0100307
k-stachowiak6cba5692018-07-09 14:45:00 +0200308Security
k-stachowiak55bea652018-07-16 12:14:18 +0200309 * Fix an issue in the X.509 module which could lead to a buffer overread
310 during certificate extensions parsing. In case of receiving malformed
311 input (extensions length field equal to 0), an illegal read of one byte
312 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak6cba5692018-07-09 14:45:00 +0200313
Simon Butcher51a46b92018-07-30 22:15:14 +0100314Bugfix
Simon Butchera36fe372018-08-31 12:00:58 +0100315 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
316 failure in the function could lead to other buffers being leaked.
Simon Butcherd6a63f42018-09-13 11:59:03 +0100317 * Fixes a missing test dependency on MBEDTLS_ARC4_C. #1890
Jaeden Amero3b691742018-08-10 10:50:34 +0100318 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
319 Fix contributed by Espressif Systems.
Ron Eldor335cf422018-06-21 16:40:24 +0300320 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor6a5d6e22018-06-28 11:09:09 +0300321 This improves compliance to RFC 4492, and as a result, solves
322 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Hanno Becker80588002018-08-13 16:36:58 +0100323 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
324 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckerf38db012018-08-03 09:53:48 +0100325 * Fix a miscalculation of the maximum record expansion in
326 mbedtls_ssl_get_record_expansion() in case of CBC ciphersuites
327 in (D)TLS versions 1.1 or higher. Fixes #1914.
Hanno Becker517e84a2018-08-17 09:47:22 +0100328 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
329 with TLS versions 1.1 and earlier when the server requested authentication
330 without providing a list of CAs. This was due to an overly strict bounds
Simon Butcherd6a63f42018-09-13 11:59:03 +0100331 check in parsing the CertificateRequest message, introduced in
332 Mbed TLS 2.12.0. Fixes #1954.
Philippe Antoine84cc74e2018-05-11 11:06:29 +0200333 * Fix undefined shifts with negative values in certificates parsing
334 (found by Catena cyber using oss-fuzz)
Hanno Becker20b5d142017-10-08 16:13:03 +0100335 * Fix memory leak and free without initialization in pk_encrypt
336 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcher51a46b92018-07-30 22:15:14 +0100337
Jaeden Amero9eb78b42018-08-10 11:26:15 +0100338Changes
339 * Improve compatibility with some alternative CCM implementations by using
340 CCM test vectors from RAM.
341
Jaeden Amero83851102018-07-25 15:36:21 +0100342= mbed TLS 2.7.5 branch released 2018-07-25
Andres AGee7157e2016-12-07 10:25:19 +0000343
Gilles Peskineb2d88402018-06-27 10:57:33 +0200344Security
345 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
346 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
347 partially recover the plaintext of messages under some conditions by
348 exploiting timing measurements. With DTLS, the attacker could perform
349 this recovery by sending many messages in the same connection. With TLS
350 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
351 worked if the same secret (for example a HTTP Cookie) has been repeatedly
352 sent over connections manipulated by the attacker. Connections using GCM
353 or CCM instead of CBC, using hash sizes other than SHA-384, or using
354 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
355 caused by a miscalculation (for SHA-384) in a countermeasure to the
356 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
357 Shamir.
Manuel Pégourié-Gonnard5fcfd032018-06-28 12:10:27 +0200358 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
359 1.2, that allowed a local attacker, able to execute code on the local
360 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200361 plaintext of messages under some conditions by using a cache attack
Antonin Décimo8fd91562019-01-23 15:24:37 +0100362 targeting an internal MD/SHA buffer. With TLS or if
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200363 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
364 the same secret (for example a HTTP Cookie) has been repeatedly sent over
365 connections manipulated by the attacker. Connections using GCM or CCM
366 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
367 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnardaeeaaf22018-06-28 10:38:35 +0200368 * Add a counter-measure against a vulnerability in TLS ciphersuites based
369 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
370 execute code on the local machine as well as manipulate network packets,
371 to partially recover the plaintext of messages under some conditions (see
372 previous entry) by using a cache attack targeting the SSL input record
373 buffer. Connections using GCM or CCM instead of CBC or using
374 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
375 Eyal Ronen and Adi Shamir.
Gilles Peskineb2d88402018-06-27 10:57:33 +0200376
Simon Butcherf15cfd52018-06-27 11:05:44 +0100377Bugfix
niisato2120ef82018-06-25 20:07:10 +0900378 * Fix compilation error on C++, because of a variable named new.
379 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcherc6bf5b42018-06-24 16:20:56 +0100380 * Fix the inline assembly for the MPI multiply helper function for i386 and
381 i386 with SSE2. Found by László Langó. Fixes #1550
Simon Butcher9a08e442018-06-22 12:02:59 +0100382 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
Simon Butcher41c23b52018-06-28 12:13:57 +0100383 Philippe Antoine. Fixes #1623.
Andres Amaya Garcia294331a2017-07-11 14:39:30 +0100384 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
385 return value. Found by @davidwu2000. #839
Simon Butchera67b20c2018-06-28 11:59:51 +0100386 * Fix the key_app_writer example which was writing a leading zero byte which
387 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcher318cd2c2018-07-02 12:00:54 +0100388 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
389 by Brendan Shanks. Part of a fix for #992.
Ron Eldor22bc7c12018-06-17 14:51:59 +0300390 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
391 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcher7924d932018-07-19 19:54:18 +0100392 * Added length checks to some TLS parsing functions. Found and fixed by
393 Philippe Antoine from Catena cyber. #1663.
Ron Eldor612a6002017-10-01 17:11:54 +0300394 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldordf9b93e2017-05-14 16:17:33 +0300395 the `#include` in the header files. Resolves #857
Simon Butcherc6a0fd82018-07-24 10:03:41 +0100396 * Fix compiler warning of 'use before initialisation' in
397 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
398 Drozd. #1098
Simon Butchera8ee41c2018-07-24 12:59:21 +0100399 * Fix decryption for zero length messages (which contain all padding) when a
400 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
401 such a message was wrongly reported as an invalid record and therefore lead
402 to the connection being terminated. Seen most often with OpenSSL using
403 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
404 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia8e346dc2018-07-04 10:01:39 +0100405 * Fix ssl_client2 example to send application data with 0-length content
406 when the request_size argument is set to 0 as stated in the documentation.
407 Fixes #1833.
Simon Butchera6462192018-07-25 17:30:20 +0100408 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
409 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcherf15cfd52018-06-27 11:05:44 +0100410
Simon Butchera063fff2018-07-10 15:20:26 +0100411Changes
Simon Butchera6462192018-07-25 17:30:20 +0100412 * Fail when receiving a TLS alert message with an invalid length, or invalid
413 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
Simon Butchera063fff2018-07-10 15:20:26 +0100414 * Change the shebang line in Perl scripts to look up perl in the PATH.
415 Contributed by fbrosson in #1533.
416
Simon Butcher662ae9e2018-06-18 14:42:14 +0100417= mbed TLS 2.7.4 branch released 2018-06-18
Moran Peker9259b3b2018-02-25 13:29:03 +0200418
419Bugfix
420 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
421 TrinityTonic. #1359.
Simon Butcher4e5edf32018-06-08 16:23:17 +0100422 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
423 used by user applications. Found and fixed by Fabio Alessandrelli.
Darryl Green68207f82017-11-27 17:12:14 +0000424 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcherd8ea8d42018-06-01 19:11:55 +0100425 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
426 build to fail. Found by zv-io. Fixes #1651.
Simon Butcher49de6b82018-06-14 08:58:59 +0100427 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
428 Reported by rahmanih in #683
Moran Peker9259b3b2018-02-25 13:29:03 +0200429
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100430Changes
431 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Simon Butchera96b9d42018-06-12 17:42:02 +0100432 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcher02582b22018-06-18 11:56:13 +0100433 * Changed the Clang parameters used in the CMake build files to work for
434 versions later than 3.6. Versions of Clang earlier than this may no longer
435 work. Fixes #1072
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100436
Jaeden Amero1fc4d332018-04-27 13:15:45 +0100437= mbed TLS 2.7.3 branch released 2018-04-30
Andres AGee7157e2016-12-07 10:25:19 +0000438
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100439Security
Simon Butcher88cc9412018-04-30 17:23:00 +0100440 * Fix an issue in the X.509 module which could lead to a buffer overread
441 during certificate validation. Additionally, the issue could also lead to
442 unnecessary callback checks being made or to some validation checks to be
443 omitted. The overread could be triggered remotely, while the other issues
444 would require a non DER-compliant certificate to be correctly signed by a
445 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
446 luocm. Fixes #825.
447 * Fix the buffer length assertion in the ssl_parse_certificate_request()
448 function which led to an arbitrary overread of the message buffer. The
449 overreads could be caused by receiving a malformed message at the point
450 where an optional signature algorithms list is expected when the signature
451 algorithms section is too short. In builds with debug output, the overread
452 data is output with the debug data.
Andrzej Kurekef30d962018-04-25 05:29:00 -0400453 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcher88cc9412018-04-30 17:23:00 +0100454 which could potentially lead to the client accepting a ciphersuite it didn't
455 offer or a ciphersuite that cannot be used with the TLS or DTLS version
456 chosen by the server. This could lead to corruption of internal data
457 structures for some configurations.
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100458
Andres AGee7157e2016-12-07 10:25:19 +0000459Bugfix
Simon Butcher88cc9412018-04-30 17:23:00 +0100460 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine8980da52018-03-22 21:49:43 +0100461 contributed by Brian J Murray and David Brown.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100462 * Add missing dependencies in test suites that led to build failures
463 in configurations that omit certain hashes or public-key algorithms.
464 Fixes #1040.
Jaeden Amero5f97be62018-03-26 18:32:14 +0100465 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
466 #1353
Gilles Peskine1dc8e812018-03-27 23:08:53 +0200467 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcher88cc9412018-04-30 17:23:00 +0100468 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
469 Deomid Ryabkov. Fixes #1299, #1475.
470 * Fix the Makefile build process for building shared libraries on Mac OS X.
471 Fixed by mnacamura.
Jethro Beekman004e3712018-02-16 13:11:04 -0800472 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcher88cc9412018-04-30 17:23:00 +0100473 unable to parse keys which had only the optional parameters field of the
474 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
475 * Return the plaintext data more quickly on unpadded CBC decryption, as
476 stated in the mbedtls_cipher_update() documentation. Contributed by
477 Andy Leiserson.
Andrzej Kurekd9594922018-03-26 04:13:24 -0400478 * Fix overriding and ignoring return values when parsing and writing to
479 a file in pk_sign program. Found by kevlut in #1142.
Krzysztof Stachowiak7da50882018-04-04 13:47:40 +0200480 * Fix buffer length assertions in the ssl_parse_certificate_request()
481 function which leads to a potential one byte overread of the message
482 buffer.
Andrzej Kurekc3a3e2d2018-04-23 08:39:13 -0400483 * Fix invalid buffer sizes passed to zlib during record compression and
484 decompression.
Gilles Peskine8980da52018-03-22 21:49:43 +0100485
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100486Changes
Simon Butcher88cc9412018-04-30 17:23:00 +0100487 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
488 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100489 * Improve testing in configurations that omit certain hashes or
490 public-key algorithms. Includes contributions by Gert van Dijk.
491 * Improve negative testing of X.509 parsing.
Jaeden Ameroef59b732018-03-28 14:21:19 +0100492 * Do not define global mutexes around readdir() and gmtime() in
493 configurations where the feature is disabled. Found and fixed by Gergely
494 Budai.
Andres Amaya Garcia3b4d5c22018-03-27 21:19:50 +0100495 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
496 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
497 without PBES2. Fixed by Marcos Del Sol Vives.
Jaeden Amero0c692cd2018-03-29 11:02:52 +0100498 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
499 Krylov.
Darryl Green28448b22018-03-29 16:05:44 +0100500 * Improve the documentation of mbedtls_ssl_write(). Suggested by
501 Paul Sokolovsky in #1356.
Simon Butcher88cc9412018-04-30 17:23:00 +0100502 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100503 letter must not be prefixed by '-', such as LLVM. Found and fixed by
504 Alex Hixon.
Andres Amaya Garcia89320a42018-03-25 23:57:09 +0100505 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100506 environment variable when using the project makefiles.
Gilles Peskine1852d662018-04-04 10:19:24 +0200507 * In the SSL module, when f_send, f_recv or f_recv_timeout report
508 transmitting more than the required length, return an error. Raised by
Jaeden Amerob5f53b12018-04-03 12:09:45 +0100509 Sam O'Connor in #1245.
Jaeden Amerod8e0cec2018-04-03 18:27:54 +0100510 * Improve robustness of mbedtls_ssl_derive_keys against the use of
511 HMAC functions with non-HMAC ciphersuites. Independently contributed
512 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100513
Jaeden Amero9ae1fba2018-03-16 16:30:17 +0000514= mbed TLS 2.7.2 branch released 2018-03-16
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200515
Gilles Peskine955d7042018-03-13 17:24:33 +0100516Security
517 * Verify results of RSA private key operations to defend
518 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +0000519 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
520 a crash on invalid input.
521 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
522 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +0100523 * Fix CRL parsing to reject CRLs containing unsupported critical
524 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +0100525
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800526Features
527 * Extend PKCS#8 interface by introducing support for the entire SHA
528 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +0100529 This allows reading encrypted PEM files produced by software that
530 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
531 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800532
Gilles Peskine158fc332018-03-11 00:47:54 +0100533Bugfix
534 * Fix setting version TLSv1 as minimal version, even if TLS 1
535 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
536 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
537 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300538 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
539 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300540 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +0100541 * In test_suite_pk, pass valid parameters when testing for hash length
542 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +0100543 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
544 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +0000545 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +0100546 * Fix X509 CRT parsing that would potentially accept an invalid tag when
547 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +0000548 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
549 that could cause a key exchange to fail on valid data.
550 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
551 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +0000552 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
553 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100554 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
555 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +0100556
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200557Changes
558 * Clarify the documentation of mbedtls_ssl_setup.
559
Jaeden Amero6a4e22c2018-02-23 11:31:04 +0000560= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +0100561
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100562Default behavior changes
563 * The truncated HMAC extension now conforms to RFC 6066. This means
564 that when both sides of a TLS connection negotiate the truncated
565 HMAC extension, Mbed TLS can now interoperate with other
566 compliant implementations, but this breaks interoperability with
567 prior versions of Mbed TLS. To restore the old behavior, enable
568 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
569 config.h. Found by Andreas Walz (ivESK, Offenburg University of
570 Applied Sciences).
571
Hanno Becker7dc832b2017-11-16 17:39:34 +0000572Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100573 * Fix implementation of the truncated HMAC extension. The previous
574 implementation allowed an offline 2^80 brute force attack on the
575 HMAC key of a single, uninterrupted connection (with no
576 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +0000577
Gilles Peskine27b07542018-02-14 14:07:48 +0100578Bugfix
579 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
580 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100581 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200582 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
583 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +0100584 In the context of SSL, this resulted in handshake failure. Reported by
585 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +0000586 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +0100587
588Changes
589 * Fix tag lengths and value ranges in the documentation of CCM encryption.
590 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100591 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +0100592 * MD functions deprecated in 2.7.0 are no longer inline, to provide
593 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +0100594
Simon Butcher55fc4e02018-02-05 01:09:13 +0000595= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100596
Gilles Peskine28a0c722017-10-17 19:01:38 +0200597Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000598 * Fix a heap corruption issue in the implementation of the truncated HMAC
599 extension. When the truncated HMAC extension is enabled and CBC is used,
600 sending a malicious application packet could be used to selectively corrupt
601 6 bytes on the peer's heap, which could potentially lead to crash or remote
602 code execution. The issue could be triggered remotely from either side in
603 both TLS and DTLS. CVE-2018-0488
604 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
605 for the key size, which could potentially lead to crash or remote code
606 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
607 Qualcomm Technologies Inc. CVE-2018-0487
608 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
609 zeros.
610 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
611 64 KiB to the address of the SSL buffer and causing a wrap around.
612 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100613 default enabled) maximum fragment length extension is disabled in the
614 config and the application data buffer passed to mbedtls_ssl_write
615 is larger than the internal message buffer (16384 bytes by default), the
616 latter overflows. The exploitability of this issue depends on whether the
617 application layer can be forced into sending such large packets. The issue
618 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000619 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
620 Fixes #707.
621 * Add a provision to prevent compiler optimizations breaking the time
622 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100623 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100624 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300625 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
626 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100627 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
628 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000629 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
630 data. Previously, trailing zero bytes were detected and omitted for the
631 sake of saving memory, but potentially leading to slight timing
632 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100633 * Wipe stack buffer temporarily holding EC private exponent
634 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000635 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100636 (server-side). Could result in application crash, but only if an ALPN
637 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100638 * Change default choice of DHE parameters from untrustworthy RFC 5114
639 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
640 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200641
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200642Features
643 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100644 * The selftest program can execute a subset of the tests based on command
645 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200646 * New unit tests for timing. Improve the self-test to be more robust
647 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100648 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000649 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100650 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100651 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300652 * Add support for alternative implementations for ECDSA, controlled by new
653 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
654 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300655 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300656 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300657 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000658 * Add support for alternative implementation of ECDH, controlled by the
659 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300660 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300661 The following functions from the ECDH module can be replaced
662 with an alternative implementation:
663 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000664 * Add support for alternative implementation of ECJPAKE, controlled by
665 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000666 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200667
Hanno Beckera47023e2017-12-22 17:08:03 +0000668API Changes
669 * Extend RSA interface by multiple functions allowing structure-
670 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000671 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000672 up RSA contexts from partial key material and having them completed to the
673 needs of the implementation automatically. This allows to setup private RSA
674 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
675 purpose or CRT and/or blinding.
676 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
677 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100678 * The following functions in the message digest modules (MD2, MD4, MD5,
679 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
680 The new functions change the return type from void to int to allow
681 returning error codes when using MBEDTLS_<MODULE>_ALT.
682 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
683 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
684 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100685 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200686
Ron Eldor73a38172017-10-03 15:58:26 +0300687New deprecations
688 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000689 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100690 * Direct manipulation of structure fields of RSA contexts is deprecated.
691 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000692 * Deprecate usage of message digest functions that return void
693 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
694 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
695 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
696 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100697 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
698 parameters from RFC 3526 or the newly added parameters from RFC 7919.
699 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
700 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
701 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000702 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
703 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100704 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100705
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100706Bugfix
707 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
708 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100709 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
710 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100711 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300712 * Parse signature algorithm extension when renegotiating. Previously,
713 renegotiated handshakes would only accept signatures using SHA-1
714 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000715 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
716 dates on leap years with 100 and 400 intervals are handled correctly. Found
717 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200718 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
719 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100720 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
721 Found independently by Florian in the mbed TLS forum and by Mishamax.
722 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100723 * Fix variable used before assignment compilation warnings with IAR
724 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000725 * Fix unchecked return codes from AES, DES and 3DES functions in
726 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
727 If a call to one of the functions of the cryptographic primitive modules
728 failed, the error may not be noticed by the function
729 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
730 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100731 * Include configuration file in md.h, to fix compilation warnings.
732 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100733 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
734 writing routines that prevented these functions to work with alternative
735 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100736 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
737 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100738 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000739 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100740 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000741 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100742 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000743 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000744 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100745 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100746 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100747 * Add size-checks for record and handshake message content, securing
748 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300749 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
750 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100751 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000752 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100753 * Fix possible memory leaks in mbedtls_gcm_self_test().
754 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000755 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
756 RSA test suite where the failure of CTR DRBG initialization lead to
757 freeing an RSA context and several MPI's without proper initialization
758 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100759 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100760 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
761 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000762 * Fix an issue in the cipher decryption with the mode
763 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
764 Note, this padding mode is not used by the TLS protocol. Found and fixed by
765 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100766 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
767 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
768 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
769 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100770 structure. Do not assume that zeroizing a context is a correct way to
771 reset it. Found independently by ccli8 on Github.
772 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000773 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
774 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100775
776Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +0000777 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +0100778 and the message digest. Further, allow enabling/disabling of authority
779 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +0000780 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
781 particular, don't require P,Q if neither CRT nor blinding are
782 used. Reported and fix proposed independently by satur9nine and sliai
783 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100784 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +0100785 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
786 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +0100787 * Update all internal usage of deprecated message digest functions to the
788 new ones with return codes. In particular, this modifies the
789 mbedtls_md_info_t structure. Propagate errors from these functions
790 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +0000791 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +0100792 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
793 modules where the software implementation can be replaced by a hardware
794 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +0100795 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
796 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100797
Simon Butcher72ea31b2017-08-10 11:51:16 +0100798= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +0200799
Simon Butcherb060cc22017-07-28 01:04:34 +0100800Security
Simon Butcher01971d02017-08-10 10:48:01 +0100801 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +0100802 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
803 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +0100804 (default: 8) intermediates, even when it was not trusted. This could be
805 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +0100806 (the default), the handshake was correctly aborted).
807 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +0100808 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
809 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +0100810
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100811Features
812 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +0100813 and the context struct mbedtls_platform_context to perform
814 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +0100815 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +0100816 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +0100817 some embedded environments to provide a means of initialising underlying
818 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +0100819
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200820API Changes
821 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
822 API consistent with mbed TLS 2.5.0. Specifically removed the inline
823 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +0100824 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
825 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +0100826 * Certificate verification functions now set flags to -1 in case the full
827 chain was not verified due to an internal error (including in the verify
828 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +0100829 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +0100830 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +0100831 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +0200832
Ron Eldor5a21fd62016-12-16 16:15:56 +0200833Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +0100834 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
835 Reported by roberto. #716
836 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +0200837 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +0100838 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +0100839 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
840 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +0200841 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100842 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +0100843 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
844 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +0100845 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100846 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +0100847 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
848 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +0000849 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100850 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +0000851 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
852 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +0100853 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +0100854 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +0100855 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +0100856 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +0100857 function mbedtls_time() instead. Found by wairua. #666
858 * Avoid shadowing of time and index functions through mbed TLS function
859 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +0200860
Janos Follathbfea4a72017-06-22 10:02:07 +0100861Changes
Janos Follath32529402017-06-22 10:02:07 +0100862 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +0100863 64-bit division. This is useful on embedded platforms where 64-bit division
864 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +0100865 * Removed mutexes from ECP hardware accelerator code. Now all hardware
866 accelerator code in the library leaves concurrency handling to the
867 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +0100868 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
869 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +0100870 * Added a test script that can be hooked into git that verifies commits
871 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +0100872 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +0100873
Simon Butcherf2a597f2017-06-20 23:08:10 +0100874= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +0100875
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200876Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +0100877 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
878 The issue could only happen client-side with renegotiation enabled.
879 Could result in DoS (application crash) or information leak
880 (if the application layer sent data read from mbedtls_ssl_read()
881 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +0200882 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
883 certificate verification. SHA-1 can be turned back on with a compile-time
884 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +0200885 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
886 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +0200887 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
888 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +0200889
Hanno Beckereccf60c2017-06-05 15:19:01 +0100890Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +0100891 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
892 valid C and they prevented the test from compiling in Visual Studio 2015
893 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +0100894 * Fix insufficient support for signature-hash-algorithm extension,
895 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +0100896 * Fix behaviour that hid the original cause of fatal alerts in some cases
897 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +0200898 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100899 * Fix SSLv3 renegotiation behaviour and stop processing data received from
900 peer after sending a fatal alert to refuse a renegotiation attempt.
901 Previous behaviour was to keep processing data even after the alert has
902 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +0100903 * Accept empty trusted CA chain in authentication mode
904 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100905 Found by jethrogb. #864
906 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
907 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
908 reflect bad EC curves within verification result.
909 * Fix bug that caused the modular inversion function to accept the invalid
910 modulus 1 and therefore to hang. Found by blaufish. #641.
911 * Fix incorrect sign computation in modular exponentiation when the base is
912 a negative MPI. Previously the result was always negative. Found by Guido
913 Vranken.
914 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
915 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +0200916
Gilles Peskine36091fe2017-05-03 16:55:03 +0200917Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +0100918 * Send fatal alerts in more cases. The previous behaviour was to skip
919 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +0000920 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +0100921 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +0000922 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +0200923
Simon Butcher9f770172017-05-15 15:13:59 +0100924= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100925
Janos Follath45182a02017-03-23 10:41:56 +0000926Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +0100927 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +0100928 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
929 Simon.
Janos Follath45182a02017-03-23 10:41:56 +0000930 * Add exponent blinding to RSA private operations as a countermeasure
931 against side-channel attacks like the cache attack described in
932 https://arxiv.org/abs/1702.08719v2.
933 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
934 Clémentine Maurice and Stefan Mangard.
935
Simon Butcher4775e832017-05-13 22:56:08 +0100936Features
Janos Follath5a1c0e72017-06-16 09:00:07 +0100937 * Add hardware acceleration support for the Elliptic Curve Point module.
938 This involved exposing parts of the internal interface to enable
939 replacing the core functions and adding and alternative, module level
940 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +0100941 * Add a new configuration option to 'mbedtls_ssl_config' to enable
942 suppressing the CA list in Certificate Request messages. The default
943 behaviour has not changed, namely every configured CAs name is included.
944
Andres AGf5bf7182017-03-03 14:09:56 +0000945API Changes
946 * The following functions in the AES module have been deprecated and replaced
947 by the functions shown below. The new functions change the return type from
948 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
949 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
950 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
951 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
952
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100953Bugfix
954 * Remove macros from compat-1.3.h that correspond to deleted items from most
955 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +0100956 * Fixed issue in the Threading module that prevented mutexes from
957 initialising. Found by sznaider. #667 #843
958 * Add checks in the PK module for the RSA functions on 64-bit systems.
959 The PK and RSA modules use different types for passing hash length and
960 without these checks the type cast could lead to data loss. Found by Guido
961 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +0100962
Simon Butcherb65c2be2017-03-10 18:50:44 +0000963= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +0100964
Janos Follath182013f2016-10-25 10:50:22 +0100965Security
Simon Butcherb65c2be2017-03-10 18:50:44 +0000966 * Add checks to prevent signature forgeries for very large messages while
967 using RSA through the PK module in 64-bit systems. The issue was caused by
968 some data loss when casting a size_t to an unsigned int value in the
969 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
970 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +0000971 * Fixed potential livelock during the parsing of a CRL in PEM format in
972 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
973 characters after the footer could result in the execution of an infinite
974 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
975 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +0100976 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
977 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +0000978 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +0000979 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
980 when verifying the validity of a key on secp224k1. This could be
981 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +0000982 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +0000983 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
984 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +0000985
Andres AG703990b2016-10-24 11:23:36 +0100986Bugfix
Andres AGd1650662016-12-09 17:26:23 +0000987 * Fix output certificate verification flags set by x509_crt_verify_top() when
988 traversing a chain of trusted CA. The issue would cause both flags,
989 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
990 set when the verification conditions are not met regardless of the cause.
991 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +0000992 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
993 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
994 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +0000995 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
996 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +0000997 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +0000998 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
999 would compare 64 bits of the record counter instead of 48 bits as indicated
1000 in RFC 6347 Section 4.3.1. This could cause the execution of the
1001 renegotiation routines at unexpected times when the protocol is DTLS. Found
1002 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001003 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001004 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001005 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001006 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1007 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1008 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1009 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1010 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1011 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001012 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1013 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001014 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1015 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001016 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1017 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001018 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1019 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001020 * Fixed the templates used to generate project and solution files for Visual
1021 Studio 2015 as well as the files themselves, to remove a build warning
1022 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001023 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1024 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001025 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1026 number to write in hexadecimal is negative and requires an odd number of
1027 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001028 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1029 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001030
Janos Follath4c006cd2016-12-13 14:14:03 +00001031= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001032
1033Changes
1034 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1035 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1036 Authentication – October 2016
1037
Simon Butcher19dbd412016-10-16 19:35:49 +01001038= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001039
Andres AG60dbc932016-09-02 15:23:48 +01001040Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001041 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1042 with RFC-5116 and could lead to session key recovery in very long TLS
1043 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1044 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1045 https://eprint.iacr.org/2016/475.pdf
1046 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001047 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001048 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001049 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001050
Simon Butchercf8c1f42016-09-02 21:29:39 +03001051Features
Simon Butcher21c54812016-10-05 14:17:37 +01001052 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1053 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001054 * Added hardware entropy selftest to verify that the hardware entropy source
1055 is functioning correctly.
1056 * Added a script to print build environment info for diagnostic use in test
1057 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001058 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1059 configure the maximum length of a file path that can be buffered when
1060 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001061 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001062 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001063 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1064 to configure the minimum number of bytes for entropy sources using the
1065 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001066
1067Bugfix
1068 * Fix for platform time abstraction to avoid dependency issues where a build
1069 may need time but not the standard C library abstraction, and added
1070 configuration consistency checks to check_config.h
1071 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001072 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1073 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001074 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1075 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001076 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1077 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001078 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001079 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001080 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001081 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001082 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001083 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001084 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1085 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1086 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001087 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1088 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001089 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001090 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001091 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001092 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001093 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1094 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001095 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001096 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001097 * Fix compatibility issue with Internet Explorer client authentication,
1098 where the limited hash choices prevented the client from sending its
1099 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001100 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001101
1102Changes
1103 * Extended test coverage of special cases, and added new timing test suite.
1104 * Removed self-tests from the basic-built-test.sh script, and added all
1105 missing self-tests to the test suites, to ensure self-tests are only
1106 executed once.
1107 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1108 * Added support for a Yotta specific configuration file -
1109 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001110 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001111 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001112 * Renamed source file library/net.c to library/net_sockets.c to avoid
1113 naming collision in projects which also have files with the common name
1114 net.c. For consistency, the corresponding header file, net.h, is marked as
1115 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001116 * Changed the strategy for X.509 certificate parsing and validation, to no
1117 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001118
Simon Butcher46125fb2016-06-27 19:43:55 +01001119= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001120
Janos Follathcc4eba72016-02-10 16:25:55 +00001121Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001122 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001123 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001124 * Fix potential integer overflow to buffer overflow in
1125 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001126 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001127 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001128 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1129 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001130
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001131Features
1132 * Support for platform abstraction of the standard C library time()
1133 function.
1134
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001135Bugfix
1136 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1137 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001138 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001139 * Fix potential build failures related to the 'apidoc' target, introduced
1140 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001141 * Fix issue in Makefile that prevented building using armar. #386
Antonin Décimo8fd91562019-01-23 15:24:37 +01001142 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
Janos Follath4ae5c292016-02-10 11:27:43 +00001143 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001144 * Fix an issue that caused valid certificates to be rejected whenever an
1145 expired or not yet valid certificate was parsed before a valid certificate
1146 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001147 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001148 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001149 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001150 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1151 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001152 * Fix issue that caused a crash if invalid curves were passed to
1153 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001154 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001155 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001156 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001157 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001158
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001159Changes
1160 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1161 don't use the optimized assembly for bignum multiplication. This removes
1162 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001163 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001164 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1165 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001166 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1167 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001168
1169= mbed TLS 2.2.1 released 2016-01-05
1170
1171Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001172 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001173 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001174 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001175 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1176 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1177 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001178 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001179
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001180Bugfix
1181 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1182 * Fix bug in certificate validation that caused valid chains to be rejected
1183 when the first intermediate certificate has pathLenConstraint=0. Found by
1184 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001185 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001186 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001187 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001188 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001189 datagram if a single record in a datagram is unexpected, instead only
1190 drop the record and look at subsequent records (if any are present) in
1191 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001192
1193= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001194
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001195Security
1196 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1197 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001198 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001199 * Fix potential heap corruption on Windows when
1200 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1201 triggered remotely. Found by Guido Vranken, Intelworks.
1202 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001203 Cannot be triggered remotely unless you create X.509 certificates based
1204 on untrusted input or write keys of untrusted origin. Found by Guido
1205 Vranken, Intelworks.
1206 * The X509 max_pathlen constraint was not enforced on intermediate
1207 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001208 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001209
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001210Features
1211 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1212 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001213 * Added a key extraction callback to accees the master secret and key
1214 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001215
1216Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001217 * Self-signed certificates were not excluded from pathlen counting,
1218 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001219 provided by Janos Follath. #319
1220 * Fix build error with configurations where ECDHE-PSK is the only key
1221 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001222 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001223 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1224 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001225 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001226 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1227 size/curve against the profile. Before that, there was no way to set a
1228 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001229 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001230 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1231 Found by Kurt Danielson. #292
1232 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001233 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1234 certificates to be rejected by some applications, including OS X
1235 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001236
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001237Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001238 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1239 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001240
1241= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001242
1243Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001244 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1245 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001246 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001247 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001248 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1249 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1250 remotely.
1251 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001252 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001253 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1254 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1255 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1256 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1257 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1258 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001259 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001260 on crafted PEM input data. Found and fix provided by Guido Vranken,
1261 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001262 accept PEM data from an untrusted source.
1263 * Fix possible heap buffer overflow in base64_encoded() when the input
1264 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001265 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001266 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001267 the same mbedtls_ssl_config object and memory allocation fails. Found by
1268 Guido Vranken, Intelworks. Cannot be forced remotely.
1269 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001270 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001271 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001272 Found by Guido Vranken, Intelworks.
1273
1274Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001275 * Fix compile error in net.c with musl libc. Found and patch provided by
1276 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001277 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001278
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001279Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001280 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1281 domain names are compliant with RFC 1035.
1282 * Fixed paths for check_config.h in example config files. (Found by bachp)
1283 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001284
1285= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001286
1287Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001288 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001289 signatures. (Found by Florian Weimer, Red Hat.)
1290 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001291 * Fix possible client-side NULL pointer dereference (read) when the client
1292 tries to continue the handshake after it failed (a misuse of the API).
1293 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001294 afl-fuzz.)
1295
1296Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001297 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1298 * Fix off-by-one error in parsing Supported Point Format extension that
1299 caused some handshakes to fail.
1300
1301Changes
1302 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1303 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001304 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001305 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001306 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001307 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001308 detected and mbedtls_ssl_read() will return
1309 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001310 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001311
1312= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001313
1314Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001315 * Added support for yotta as a build system.
1316 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001317
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001318Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001319 * Fix segfault in the benchmark program when benchmarking DHM.
1320 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001321 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001322 * Fix bug when parsing a ServerHello without extensions (found by David
1323 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001324 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1325 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001326 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1327 installed (found by Rawi666).
1328 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001329 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001330 (found by robotanarchy) (#232).
1331 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001332 tests (found by robotanarchy) (#232).
1333 * Fix missing -static-libgcc when building shared libraries for Windows
1334 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001335 * Fix link error when building shared libraries for Windows with make.
1336 * Fix error when loading libmbedtls.so.
1337 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1338 be always used (found by dcb314) (#235)
1339 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1340 result trying to unlock an unlocked mutex on invalid input (found by
1341 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001342 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001343 * Fix memory corruption on client with overlong PSK identity, around
1344 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001345 Aleksandrs Saveljevs) (#238)
1346 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1347 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001348 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1349
1350Changes
Simon Butcher52754592015-09-03 13:06:01 +01001351 * The PEM parser now accepts a trailing space at end of lines (#226).
1352 * It is now possible to #include a user-provided configuration file at the
1353 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1354 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001355 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001356 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001357 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001358 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001359 Hugo Leisink) (#210).
1360 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1361 length.
1362
1363= mbed TLS 2.0.0 released 2015-07-13
1364
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001365Features
1366 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1367 * Ability to override core functions from MDx, SHAx, AES and DES modules
1368 with custom implementation (eg hardware accelerated), complementing the
1369 ability to override the whole module.
1370 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001371 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001372 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001373 which algorithms and key sizes (curves for ECDSA) are acceptable.
1374 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001375 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001376 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001377 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001378
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001379API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001380 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1381 You now need to link to all of them if you use TLS for example.
1382 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001383 Some names have been further changed to make them more consistent.
Antonin Décimo8fd91562019-01-23 15:24:37 +01001384 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001385 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02001386 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001387 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001388 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001389 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001390 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001391 * The following _init() functions that could return errors have
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001392 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001393 should generally be the first function called on this context after init:
1394 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001395 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1396 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001397 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001398 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Tillmann Karras588ad502015-09-25 04:27:22 +02001399 Note that for mbedtls_ssl_setup(), you need to be done setting up the
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001400 ssl_config structure before calling it.
1401 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1402 ssl_set_session() and ssl_set_client_transport_id(), plus
1403 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001404 (see rename.pl and compat-1.3.h above) and their first argument's type
1405 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001406 * ssl_set_bio() changed signature (contexts merged, order switched, one
1407 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001408 * The following functions have been introduced and must be used in callback
1409 implementations (SNI, PSK) instead of their *conf counterparts:
1410 mbedtls_ssl_set_hs_own_cert()
1411 mbedtls_ssl_set_hs_ca_chain()
1412 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001413 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001414 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001415 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001416 pointer, parameters reordered).
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001417 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1418 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001419 * The SSL debug callback gained two new arguments (file name, line number).
1420 * Debug modes were removed.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001421 * mbedtls_ssl_conf_truncated_hmac() now returns void.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001422 * mbedtls_memory_buffer_alloc_init() now returns void.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001423 * X.509 verification flags are now an uint32_t. Affect the signature of:
1424 mbedtls_ssl_get_verify_result()
1425 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001426 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001427 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001428 * The following functions changed prototype to avoid an in-out length
1429 parameter:
1430 mbedtls_base64_encode()
1431 mbedtls_base64_decode()
1432 mbedtls_mpi_write_string()
1433 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001434 * In the NET module, all "int" and "int *" arguments for file descriptors
1435 changed type to "mbedtls_net_context *".
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001436 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001437 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1438 return void.
Antonin Décimo8fd91562019-01-23 15:24:37 +01001439 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001440 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001441 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001442 * Last argument of x509_crt_check_key_usage() and
1443 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001444 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
1445 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1446 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001447 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001448 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1449 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
1450 length parameter to include the terminating null byte for PEM input.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001451 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001452 * calloc() is now used instead of malloc() everywhere. API of platform
1453 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001454 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001455 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1456 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001457 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
1458 in config.h
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001459 * net_connect() and net_bind() have a new 'proto' argument to choose
1460 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001461 Their 'port' argument type is changed to a string.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001462 * Some constness fixes
1463
1464Removals
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001465 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001466 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1467 mbedtls_ecp_muladd().
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001468 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1469 (use generic functions from md.h)
1470 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001471 waiting function.
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001472 * Removed test DHM parameters from the test certs module.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001473 * Removed the PBKDF2 module (use PKCS5).
1474 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1475 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1476 * Removed openssl.h (very partial OpenSSL compatibility layer).
1477 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1478 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1479 been removed (compiler is required to support 32-bit operations).
1480 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
1481 * Removed test program o_p_test, the script compat.sh does more.
1482 * Removed test program ssl_test, superseded by ssl-opt.sh.
1483 * Removed helper script active-config.pl
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001484
1485New deprecations
1486 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
1487 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001488
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001489Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001490 * Renamed a few headers to include _internal in the name. Those headers are
1491 not supposed to be included by users.
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001492 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
1493 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001494 * Changed cipher_base_t into an opaque structure.
1495 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001496 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001497 * Removed r and s from ecdsa_context
1498 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001499
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001500Default behavior changes
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001501 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001502 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
1503 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001504 * Support for receiving SSLv2 ClientHello is now disabled by default at
1505 compile time.
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001506 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001507 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1508 enabled in the default configuration, this is only noticeable if using a
1509 custom config.h
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001510 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001511 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1512 chain verification.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001513 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001514 * The following functions are now case-sensitive:
1515 mbedtls_cipher_info_from_string()
1516 mbedtls_ecp_curve_info_from_name()
1517 mbedtls_md_info_from_string()
1518 mbedtls_ssl_ciphersuite_from_string()
1519 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001520
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001521Requirement changes
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001522 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001523 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001524 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001525
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001526API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001527 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1528 new prototype, and mbedtls_ssl_set_read_timeout().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001529 * The following functions now return void:
1530 mbedtls_ssl_conf_transport()
1531 mbedtls_ssl_conf_max_version()
1532 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001533 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1534 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1535 an example implementation, see mbedtls_timing_delay_context and
1536 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001537 * With UDP sockets, it is no longer necessary to call net_bind() again
1538 after a successful net_accept().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001539
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001540Changes
1541 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
1542 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001543 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1544 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001545
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001546= mbed TLS 1.3 branch
1547
1548Security
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001549 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001550 extendedKeyUsage on the leaf certificate was lost (results not accessible
1551 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001552 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1553 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001554
1555Features
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001556 * Improve ECC performance by using more efficient doubling formulas
1557 (contributed by Peter Dettman).
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001558 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001559 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001560 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001561 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
1562 * Add support for id-at-uniqueIdentifier in X.509 names.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001563 * Add support for overriding snprintf() (except on Windows) and exit() in
1564 the platform layer.
1565 * Add an option to use macros instead of function pointers in the platform
1566 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001567 * Improved Makefiles for Windows targets by fixing library targets and making
1568 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001569 * The benchmark program also prints heap usage for public-key primitives
1570 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
1571 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
1572 speed and RAM (heap only for now) usage.
1573 * New script memory.sh helps measuring the ROM and RAM requirements of two
1574 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001575 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001576 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001577 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001578 errors on use of deprecated functions.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001579
1580Bugfix
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001581 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001582 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001583 * Fix bug in entropy.c when THREADING_C is also enabled that caused
1584 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001585 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
1586 once on the same context.
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001587 * Fix bug in ssl_mail_client when password is longer that username (found
1588 by Bruno Pape).
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001589 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1590 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001591 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
1592 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001593 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
1594 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001595 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001596 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1597 ssl_write() is called before the handshake is finished (introduced in
1598 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001599 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1600 rejected.
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001601 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001602 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001603 * Fix hardclock() (only used in the benchmarking program) with some
1604 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001605 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001606 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1607 platforms.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001608 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001609 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
1610 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1611 in 1.3.10).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001612 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001613 * Add missing dependency on SHA-256 in some x509 programs (reported by
1614 Gergely Budai).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001615 * Fix bug related to ssl_set_curves(): the client didn't check that the
1616 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001617
1618Changes
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001619 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1620 * Remove potential sources of timing variations (some contributed by Pascal
1621 Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001622 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001623 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001624 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001625 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001626 more flexible (warning: OFLAGS is not used any more) (see the README)
1627 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001628 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001629 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001630 * Move from SHA-1 to SHA-256 in example programs using signatures
1631 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001632 * Remove some unneeded inclusions of header files from the standard library
1633 "minimize" others (eg use stddef.h if only size_t is needed).
1634 * Change #include lines in test files to use double quotes instead of angle
1635 brackets for uniformity with the rest of the code.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001636 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001637
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001638= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001639Security
1640 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001641 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001642 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1643 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001644 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001645 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001646 client certificate) (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001647 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001648 (TLS server is not affected if it doesn't ask for a client certificate)
1649 (found using Codenomicon Defensics).
1650 * Fix potential stack overflow while parsing crafted X.509 certificates
1651 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001652 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001653 * Fix timing difference that could theoretically lead to a
1654 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
1655 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001656
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001657Features
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001658 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
1659 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
1660 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001661 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001662 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001663 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1664 length of an X.509 verification chain.
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001665 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001666 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Paul Bakker6152b022015-04-14 15:00:09 +02001667 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001668 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001669 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1670 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001671 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001672 while using the default ciphersuite list.
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001673 * Added new error codes and debug messages about selection of
1674 ciphersuite/certificate.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001675
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001676Bugfix
1677 * Stack buffer overflow if ctr_drbg_update() is called with too large
1678 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001679 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
1680 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001681 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
1682 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001683 by Julian Ospald).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001684 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001685 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1686 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001687 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1688 Peter Vaskovic).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001689 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001690 * ssl_get_verify_result() now works even if the handshake was aborted due
1691 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001692 * Skip writing and parsing signature_algorithm extension if none of the
1693 key exchanges enabled needs certificates. This fixes a possible interop
1694 issue with some servers when a zero-length extension was sent. (Reported
1695 by Peter Dettman.)
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001696 * On a 0-length input, base64_encode() did not correctly set output length
1697 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001698
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001699Changes
1700 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
1701 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001702 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001703 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001704 * Forbid repeated extensions in X.509 certificates.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001705 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001706 * A specific error is now returned when there are ciphersuites in common
1707 but none of them is usable due to external factors such as no certificate
Paul Bakkere522d0f2015-01-14 16:12:48 +01001708 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001709 * It is now possible to disable negotiation of truncated HMAC server-side
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001710 at runtime with ssl_set_truncated_hmac().
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001711 * Example programs for SSL client and server now disable SSLv3 by default.
1712 * Example programs for SSL client and server now disable RC4 by default.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001713 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001714
Paul Bakker9eac4f72014-10-20 13:56:15 +02001715= PolarSSL 1.3.9 released 2014-10-20
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001716Security
1717 * Lowest common hash was selected from signature_algorithms extension in
1718 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001719 * Remotely-triggerable memory leak when parsing some X.509 certificates
Paul Bakkerb082bb52014-10-20 13:37:51 +02001720 (server is not affected if it doesn't ask for a client certificate)
1721 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001722 * Remotely-triggerable memory leak when parsing crafted ClientHello
Paul Bakkerb082bb52014-10-20 13:37:51 +02001723 (not affected if ECC support was compiled out) (found using Codenomicon
1724 Defensics).
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001725
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001726Bugfix
1727 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001728 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001729 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001730 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001731 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001732 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1733 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001734 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001735 * ssl_read() could return non-application data records on server while
1736 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001737 * Server-initiated renegotiation would fail with non-blocking I/O if the
1738 write callback returned WANT_WRITE when requesting renegotiation.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001739 * ssl_close_notify() could send more than one message in some circumstances
1740 with non-blocking I/O.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001741 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001742 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001743 * Fix compile error with armcc in mpi_is_prime()
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001744 * Fix potential bad read in parsing ServerHello (found by Adrien
1745 Vialletelle).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001746
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001747Changes
1748 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
1749 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001750 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
1751 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001752 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1753 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001754 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1755 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001756 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1757 RSA keys.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001758 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001759 * X.509 certificates with more than one AttributeTypeAndValue per
1760 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001761
Paul Bakker1910aa72014-07-11 11:28:56 +02001762= PolarSSL 1.3.8 released 2014-07-11
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001763Security
1764 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1765 It was possible to crash the server (and client) using crafted messages
1766 when a GCM suite was chosen.
1767
Paul Bakkerc6ece492014-05-22 15:45:03 +02001768Features
1769 * Add CCM module and cipher mode to Cipher Layer
1770 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001771 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1772 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001773 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001774 * Add example config.h for PSK with CCM, optimized for low RAM usage.
1775 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02001776 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
1777 from the default list (inactive by default).
Paul Bakker23647b42014-07-04 15:00:12 +02001778 * Add server-side enforcement of sent renegotiation requests
1779 (ssl_set_renegotiation_enforced())
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02001780 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
1781 ciphersuites to use and save some memory if the list is small.
Paul Bakkerc6ece492014-05-22 15:45:03 +02001782
Paul Bakker863989b2014-06-12 21:49:01 +02001783Changes
1784 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
1785 required on some platforms (e.g. OpenBSD)
Paul Bakker34617722014-06-13 17:20:13 +02001786 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
1787 against unwanted compiler optimizations
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02001788 * md_list() now returns hashes strongest first
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02001789 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
1790 strongest offered by client.
Paul Bakker28476e22014-07-01 15:59:04 +02001791 * All public contexts have _init() and _free() functions now for simpler
1792 usage pattern
Paul Bakker863989b2014-06-12 21:49:01 +02001793
Paul Bakker5593f7c2014-05-06 10:29:28 +02001794Bugfix
1795 * Fix in debug_print_msg()
Paul Bakker1ebc0c52014-05-22 15:47:58 +02001796 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakkerdff31392014-05-22 15:06:41 +02001797 * Remove less-than-zero checks on unsigned numbers
Paul Bakker0f651c72014-05-22 15:12:19 +02001798 * Stricter check on SSL ClientHello internal sizes compared to actual packet
1799 size (found by TrustInSoft)
Paul Bakker49033ba2014-06-12 21:46:13 +02001800 * Fix WSAStartup() return value check (found by Peter Vaskovic)
1801 * Other minor issues (found by Peter Vaskovic)
1802 * Fix symlink command for cross compiling with CMake (found by Andre
1803 Heinecke)
Paul Bakker3c38f292014-06-13 17:37:46 +02001804 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001805 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02001806 use with some ciphersuites and versions (RC4 in all versions, CBC with
1807 versions < TLS 1.1).
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02001808 * Very large records using more than 224 bytes of padding were incorrectly
1809 rejected with CBC-based ciphersuites and TLS >= 1.1
1810 * Very large records using less padding could cause a buffer overread of up
1811 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02001812 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
1813 been removed in 1.3.6.)
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02001814 * Restore ability to locally trust a self-signed cert that is not a proper
1815 CA for use as an end entity certificate. (This had been removed in
1816 1.3.6.)
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07001817 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02001818 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
1819 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02001820 * Fix off-by-one error in parsing Supported Point Format extension that
1821 caused some handshakes to fail.
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02001822 * Fix possible miscomputation of the premaster secret with DHE-PSK key
1823 exchange that caused some handshakes to fail with other implementations.
1824 (Failure rate <= 1/255 with common DHM moduli.)
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02001825 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerd5983182014-07-04 13:50:31 +02001826 * Fix base64_decode() to return and check length correctly (in case of
1827 tight buffers)
Paul Bakker6c343d72014-07-10 14:36:19 +02001828 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
1829 by Hui Dong)
Paul Bakker5593f7c2014-05-06 10:29:28 +02001830
Paul Bakker47431b62014-05-02 13:27:13 +02001831= PolarSSL 1.3.7 released on 2014-05-02
Paul Bakkereaebbd52014-04-25 15:04:14 +02001832Features
Paul Bakkerc73079a2014-04-25 16:34:30 +02001833 * debug_set_log_mode() added to determine raw or full logging
1834 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker0f90d7d2014-04-30 11:49:44 +02001835 * version_check_feature() added to check for compile-time options at
1836 run-time
Paul Bakker92478c32014-04-25 15:18:34 +02001837
Paul Bakker088c5c52014-04-25 11:11:10 +02001838Changes
1839 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
1840 checked and filled in the relevant module headers
Paul Bakker92478c32014-04-25 15:18:34 +02001841 * Debug module only outputs full lines instead of parts
Paul Bakker63844402014-04-30 15:34:12 +02001842 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02001843 * AES-NI now compiles with "old" assemblers too
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02001844 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker088c5c52014-04-25 11:11:10 +02001845
Paul Bakkere92f73d2014-04-18 14:08:26 +02001846Bugfix
1847 * Only iterate over actual certificates in ssl_write_certificate_request()
1848 (found by Matthew Page)
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02001849 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
1850 Karger)
Paul Bakkerfdba4682014-04-25 11:48:35 +02001851 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakker61885c72014-04-25 12:59:03 +02001852 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
1853 ciphersuites, for full SSL frames of data.
Paul Bakkera7036632014-04-30 10:15:38 +02001854 * Improve interoperability by not writing extension length in ClientHello /
1855 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02001856 * rsa_check_pubkey() now allows an E up to N
Paul Bakkerf96f7b62014-04-30 16:02:38 +02001857 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakker33dc46b2014-04-30 16:11:39 +02001858 * mpi_fill_random() was creating numbers larger than requested on
1859 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02001860 * Fix dependencies issues in X.509 test suite.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02001861 * Some parts of ssl_tls.c were compiled even when the module was disabled.
Markus Pfeiffera26a0052014-04-22 20:16:15 +00001862 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Barry K. Nathancf975f52014-04-23 17:40:25 -07001863 * Fix detection of Clang on some Apple platforms with CMake
1864 (found by Barry K. Nathan)
Paul Bakkere92f73d2014-04-18 14:08:26 +02001865
Paul Bakker784b04f2014-04-11 15:33:59 +02001866= PolarSSL 1.3.6 released on 2014-04-11
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001867
Paul Bakker27e36d32014-04-08 12:33:37 +02001868Features
1869 * Support for the ALPN SSL extension
Paul Bakker1cfc4582014-04-09 15:25:13 +02001870 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001871 * Enable verification of the keyUsage extension for CA and leaf
Paul Bakker59366212014-04-09 15:55:20 +02001872 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02001873 * Enable verification of the extendedKeyUsage extension
1874 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02001875
Paul Bakker4984d3c2014-04-04 15:39:37 +02001876Changes
1877 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02001878 * pk_verify() now returns a specific error code when the signature is valid
1879 but shorter than the supplied length.
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02001880 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02001881 * Reject certificates with times not in UTC, per RFC 5280.
Paul Bakker4984d3c2014-04-04 15:39:37 +02001882
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001883Security
1884 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
1885 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02001886 * The notAfter date of some certificates was no longer checked since 1.3.5.
1887 This affects certificates in the user-supplied chain except the top
1888 certificate. If the user-supplied chain contains only one certificates,
1889 it is not affected (ie, its notAfter date is properly checked).
Paul Bakker4224bc02014-04-08 14:36:50 +02001890 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
1891 TrustInSoft)
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02001892
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001893Bugfix
1894 * The length of various ClientKeyExchange messages was not properly checked.
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01001895 * Some example server programs were not sending the close_notify alert.
Paul Bakker75a28602014-03-31 12:08:17 +02001896 * Potential memory leak in mpi_exp_mod() when error occurs during
1897 calculation of RR.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02001898 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02001899 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
1900 Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02001901 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
1902 (found by Gergely Budai)
Shuo Chen95a0d112014-04-04 21:04:40 -07001903 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
1904 Shuo Chen).
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01001905 * oid_get_numeric_string() used to truncate the output without returning an
1906 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01001907 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02001908 * Calling pk_debug() on an RSA-alt key would segfault.
1909 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Paul Bakker16300582014-04-11 13:28:43 +02001910 * Potential buffer overwrite in pem_write_buffer() because of low length
1911 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02001912 * EC curves constants, which should be only in ROM since 1.3.3, were also
1913 stored in RAM due to missing 'const's (found by Gergely Budai).
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01001914
Paul Bakker96d52652014-03-26 16:55:50 +01001915= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001916Features
1917 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001918 * Option to set the Curve preference order (disabled by default)
Paul Bakker6a28e722014-02-06 13:41:55 +01001919 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakkerf2561b32014-02-06 15:11:55 +01001920 * Ability to provide alternate timing implementation
Paul Bakker2ceda572014-02-06 15:55:25 +01001921 * Ability to force the entropy module to use SHA-256 as its basis
1922 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001923 * Testing script ssl-opt.sh added for testing 'live' ssl option
1924 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01001925 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Paul Bakker66ff70d2014-03-26 11:54:05 +01001926 * Entropy module now supports seed writing and reading
Paul Bakker6a28e722014-02-06 13:41:55 +01001927
1928Changes
1929 * Deprecated the Memory layer
Paul Bakker47703a02014-02-06 15:01:20 +01001930 * entropy_add_source(), entropy_update_manual() and entropy_gather()
1931 now thread-safe if POLARSSL_THREADING_C defined
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01001932 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01001933 * Work around a bug of the version of Clang shipped by Apple with Mavericks
1934 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01001935 * Revamped the compat.sh interoperatibility script to include support for
1936 testing against GnuTLS
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001937 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Paul Bakker674e0b02014-03-26 13:26:52 +01001938 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01001939
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001940Security
1941 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01001942 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001943 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01001944 * Check notBefore timestamp of certificates and CRLs from the future.
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01001945 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001946 * Fixed possible buffer overflow with overlong PSK
Paul Bakker91c61bc2014-03-26 14:06:55 +01001947 * Possible remotely-triggered out-of-bounds memory access fixed (found by
1948 TrustInSoft)
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01001949
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001950Bugfix
1951 * ecp_gen_keypair() does more tries to prevent failure because of
1952 statistics
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01001953 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakkercd6d69a2014-02-06 15:43:21 +01001954 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01001955 * Fixed version-major intolerance in server
Paul Bakker3d52ab72014-03-07 10:33:55 +01001956 * Fixed CMake symlinking on out-of-source builds
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01001957 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01001958 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Alex Wilson73491422014-03-06 00:04:09 +10001959 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
1960 Alex Wilson.)
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001961 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
1962 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01001963 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001964 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01001965 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001966 client certificate.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01001967 * ssl_srv was leaking memory when client presented a timed out ticket
Paul Bakkerb0695ce2014-03-17 13:42:23 +01001968 containing a client certificate
Paul Bakker3d6504a2014-03-17 13:41:51 +01001969 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
1970 out_ctr failed
Paul Bakker77f4f392014-03-26 15:28:55 +01001971 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
1972 of one of them failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01001973 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker5fff23b2014-03-26 15:34:54 +01001974 * x509_get_current_time() uses localtime_r() to prevent thread issues
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01001975
Paul Bakker2aca2412014-01-27 11:49:46 +01001976= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker3eb96732014-01-22 13:08:19 +01001977Features
Paul Bakker0ac99ca2014-01-22 13:08:44 +01001978 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakker5862eee2014-01-22 14:18:03 +01001979 * Support for RIPEMD-160
Paul Bakker556efba2014-01-24 15:38:12 +01001980 * Support for AES CFB8 mode
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01001981 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker3eb96732014-01-22 13:08:19 +01001982
1983Bugfix
1984 * Potential memory leak in bignum_selftest()
1985 * Replaced expired test certificate
Paul Bakkerd75ba402014-01-24 16:11:17 +01001986 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakkerb84582b2014-01-27 12:23:43 +01001987 * net module handles timeouts on blocking sockets better (found by Tilman
1988 Sauerbeck)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01001989 * Assembly format fixes in bn_mul.h
1990
1991Security
Paul Bakkerb84582b2014-01-27 12:23:43 +01001992 * Missing MPI_CHK calls added around unguarded mpi calls (found by
1993 TrustInSoft)
Paul Bakker3eb96732014-01-22 13:08:19 +01001994
Paul Bakker5bc07a32013-12-31 10:57:44 +01001995= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker014f1432013-12-02 14:54:01 +01001996Features
1997 * EC key generation support in gen_key app
Paul Bakker9dc53a92013-12-02 14:55:28 +01001998 * Support for adhering to client ciphersuite order preference
1999 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker48d78a52013-12-05 16:11:38 +01002000 * Support for Curve25519
Paul Bakkerfdf94692013-12-17 13:09:31 +01002001 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakker5a607d22013-12-17 14:33:42 +01002002 * Support for IPv6 in the NET module
Paul Bakker23116fd2013-12-30 14:09:47 +01002003 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakkerf9c49532013-12-19 15:40:58 +01002004 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakker014f1432013-12-02 14:54:01 +01002005
Paul Bakker7aa03752013-11-26 17:37:31 +01002006Changes
2007 * gen_prime() speedup
2008 * Speedup of ECP multiplication operation
2009 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002010 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker4040d7e2013-12-02 14:52:57 +01002011 * More constant-time checks in the RSA module
Paul Bakkerb14817d2013-12-02 22:03:23 +01002012 * Split off curves from ecp.c into ecp_curves.c
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002013 * Curves are now stored fully in ROM
Paul Bakkerc7387912013-12-31 10:32:50 +01002014 * Memory usage optimizations in ECP module
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002015 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker7aa03752013-11-26 17:37:31 +01002016
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002017Bugfix
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002018 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002019 * Fixed X.509 hostname comparison (with non-regular characters)
Paul Bakkera9a028e2013-11-21 17:31:06 +01002020 * SSL now gracefully handles missing RNG
Paul Bakker7aa03752013-11-26 17:37:31 +01002021 * Missing defines / cases for RSA_PSK key exchange
2022 * crypt_and_hash app checks MAC before final decryption
Paul Bakker6f0636a2013-12-16 15:24:05 +01002023 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakkerf70fe812013-12-16 16:43:10 +01002024 * Memory leak in benchmark application
Paul Bakker1a56fc92013-12-19 13:51:24 +01002025 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6ea1a952013-12-31 11:16:03 +01002026 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2027 TrustInSoft)
Paul Bakker6992eb72013-12-31 11:35:16 +01002028 * Fixed potential overflow in certificate size verification in
2029 ssl_write_certificate() (found by TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002030
Paul Bakker956c9e02013-12-19 14:42:28 +01002031Security
2032 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2033 TrustInSoft)
2034
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002035= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker08bb1872013-10-28 14:03:26 +01002036Features
2037 * PK tests added to test framework
Paul Bakker3f917e22013-10-28 14:16:59 +01002038 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker16421222013-10-28 14:37:09 +01002039 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker08bb1872013-10-28 14:03:26 +01002040
Paul Bakker7bc745b2013-10-28 14:39:49 +01002041Changes
2042 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002043 * Value comparisons in SSL layer are now constant-time
Paul Bakker7b0be682013-10-29 14:24:37 +01002044 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakkere1121b62013-10-31 14:37:37 +01002045 * SSL Renegotiation was refactored
Paul Bakker7bc745b2013-10-28 14:39:49 +01002046
Paul Bakker677377f2013-10-28 12:54:26 +01002047Bugfix
Paul Bakker16421222013-10-28 14:37:09 +01002048 * More stringent checks in cipher layer
Paul Bakker677377f2013-10-28 12:54:26 +01002049 * Server does not send out extensions not advertised by client
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002050 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker68037da2013-10-28 14:02:40 +01002051 * Misc fixes and additions to dependency checks
Paul Bakker50dc8502013-10-28 21:19:10 +01002052 * Const correctness
Paul Bakker93c6aa42013-10-28 22:28:09 +01002053 * cert_write with selfsign should use issuer_name as subject_name
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002054 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002055 * Defines to handle UEFI environment under MSVC
Paul Bakkere1121b62013-10-31 14:37:37 +01002056 * Server-side initiated renegotiations send HelloRequest
Paul Bakker677377f2013-10-28 12:54:26 +01002057
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002058= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakkerb799dec2013-10-11 10:03:27 +02002059Features
2060 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakker376e8152013-10-15 12:44:23 +02002061 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerf34673e2013-10-15 12:46:17 +02002062 * Support for RSA-PSK key-exchange and ciphersuites
Paul Bakkerb799dec2013-10-11 10:03:27 +02002063
Paul Bakkerddba8822013-10-11 09:21:56 +02002064Changes
2065 * RSA blinding locks for a smaller amount of time
Paul Bakker16770332013-10-11 09:59:44 +02002066 * TLS compression only allocates working buffer once
Paul Bakkerbe089b02013-10-14 15:51:50 +02002067 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002068 * config.h is more script-friendly
Paul Bakkerddba8822013-10-11 09:21:56 +02002069
2070Bugfix
2071 * Missing MSVC defines added
2072 * Compile errors with POLARSSL_RSA_NO_CRT
2073 * Header files with 'polarssl/'
Paul Bakkerfcc17212013-10-11 09:36:52 +02002074 * Const correctness
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002075 * Possible naming collision in dhm_context
Paul Bakker4aa40d42013-10-11 10:49:24 +02002076 * Better support for MSVC
Paul Bakkerb7c13122013-10-11 10:51:32 +02002077 * threading_set_alt() name
Paul Bakker5191e922013-10-11 10:54:28 +02002078 * Added missing x509write_crt_set_version()
Paul Bakkerddba8822013-10-11 09:21:56 +02002079
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002080= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker41c83d32013-03-20 14:39:14 +01002081Features
2082 * Elliptic Curve Cryptography module added
2083 * Elliptic Curve Diffie Hellman module added
2084 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2085 (ECDHE-based ciphersuites)
Paul Bakkerc8676782013-08-28 12:15:11 +02002086 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
2087 (ECDSA-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002088 * Ability to specify allowed ciphersuites based on the protocol version.
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002089 * PSK and DHE-PSK based ciphersuites added
Paul Bakker6e339b52013-07-03 13:37:05 +02002090 * Memory allocation abstraction layer added
2091 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakker2466d932013-09-28 14:40:38 +02002092 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002093 * Public Key abstraction layer added
Paul Bakkerf85778e2013-07-19 14:55:25 +02002094 * Parsing Elliptic Curve keys
2095 * Parsing Elliptic Curve certificates
2096 * Support for max_fragment_length extension (RFC 6066)
2097 * Support for truncated_hmac extension (RFC 6066)
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002098 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
2099 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
Paul Bakker936539a2013-08-14 13:49:20 +02002100 * Support for session tickets (RFC 5077)
Paul Bakkerca174fe2013-08-28 16:31:30 +02002101 * Certificate Request (CSR) generation with extensions (key_usage,
2102 ns_cert_type)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002103 * X509 Certificate writing with extensions (basic_constraints,
2104 issuer_key_identifier, etc)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002105 * Optional blinding for RSA, DHM and EC
Paul Bakker8b817dc2013-09-25 18:03:58 +02002106 * Support for multiple active certificate / key pairs in SSL servers for
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002107 the same host (Not to be confused with SNI!)
Paul Bakker41c83d32013-03-20 14:39:14 +01002108
Paul Bakker9b5798d2013-03-13 13:53:00 +01002109Changes
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002110 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2111 individually
Paul Bakker68884e32013-01-07 18:20:04 +01002112 * Introduced separate SSL Ciphersuites module that is based on
2113 Cipher and MD information
Paul Bakker9b5798d2013-03-13 13:53:00 +01002114 * Internals for SSL module adapted to have separate IV pointer that is
2115 dynamically set (Better support for hardware acceleration)
Paul Bakkerc70b9822013-04-07 22:00:46 +02002116 * Moved all OID functionality to a separate module. RSA function
2117 prototypes for the RSA sign and verify functions changed as a result
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002118 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker2fbefde2013-06-29 16:01:15 +02002119 * Client and server now filter sent and accepted ciphersuites on minimum
2120 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002121 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002122 * Renamed error_strerror() to the less conflicting polarssl_strerror()
2123 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002124 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002125 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002126 * X509 core refactored
2127 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002128 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002129 * Support faulty X509 v1 certificates with extensions
2130 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002131
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002132Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002133 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002134 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002135 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002136 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002137
Paul Bakkeraab30c12013-08-30 11:00:25 +02002138Security
2139 * RSA blinding on CRT operations to counter timing attacks
2140 (found by Cyril Arnaud and Pierre-Alain Fouque)
2141
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002142
2143= Version 1.2.14 released 2015-05-??
2144
2145Security
2146 * Fix potential invalid memory read in the server, that allows a client to
2147 crash it remotely (found by Caj Larsson).
2148 * Fix potential invalid memory read in certificate parsing, that allows a
2149 client to crash the server remotely if client authentication is enabled
2150 (found using Codenomicon Defensics).
2151 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2152 https://dl.acm.org/citation.cfm?id=2714625
2153
2154Bugfix
2155 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2156 * Fix hardclock() (only used in the benchmarking program) with some
2157 versions of mingw64 (found by kxjhlele).
2158 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2159 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2160 platforms (found with Coverity Scan).
2161
2162= Version 1.2.13 released 2015-02-16
2163Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2164 this will be made in the 1.2 branch at this point.
2165
2166Security
2167 * Fix remotely-triggerable uninitialised pointer dereference caused by
2168 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2169 for a client certificate) (found using Codenomicon Defensics).
2170 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2171 (TLS server is not affected if it doesn't ask for a client certificate)
2172 (found using Codenomicon Defensics).
2173 * Fix potential stack overflow while parsing crafted X.509 certificates
2174 (TLS server is not affected if it doesn't ask for a client certificate)
2175 found using Codenomicon Defensics).
2176 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2177 (TLS server is not affected if it doesn't ask for a client certificate).
2178
2179Bugfix
2180 * Fix potential undefined behaviour in Camellia.
2181 * Fix memory leaks in PKCS#5 and PKCS#12.
2182 * Stack buffer overflow if ctr_drbg_update() is called with too large
2183 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2184 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2185 in 1.2.12).
2186 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2187 Peter Vaskovic).
2188 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2189 * ssl_get_verify_result() now works even if the handshake was aborted due
2190 to a failed verification (found by Fredrik Axelsson).
2191 * Skip writing and parsing signature_algorithm extension if none of the
2192 key exchanges enabled needs certificates. This fixes a possible interop
2193 issue with some servers when a zero-length extension was sent. (Reported
2194 by Peter Dettman.)
2195 * On a 0-length input, base64_encode() did not correctly set output length
2196 (found by Hendrik van den Boogaard).
2197
2198Changes
2199 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2200 * Forbid repeated extensions in X.509 certificates.
2201 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2202 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002203= Version 1.2.12 released 2014-10-24
2204
2205Security
2206 * Remotely-triggerable memory leak when parsing some X.509 certificates
2207 (server is not affected if it doesn't ask for a client certificate).
2208 (Found using Codenomicon Defensics.)
2209
2210Bugfix
2211 * Fix potential bad read in parsing ServerHello (found by Adrien
2212 Vialletelle).
2213 * ssl_close_notify() could send more than one message in some circumstances
2214 with non-blocking I/O.
2215 * x509_crt_parse() did not increase total_failed on PEM error
2216 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2217 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2218 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2219 * ssl_read() could return non-application data records on server while
2220 renegotation was pending, and on client when a HelloRequest was received.
2221 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2222
2223Changes
2224 * X.509 certificates with more than one AttributeTypeAndValue per
2225 RelativeDistinguishedName are not accepted any more.
2226 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2227 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2228 * Accept spaces at end of line or end of buffer in base64_decode().
2229
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002230= Version 1.2.11 released 2014-07-11
2231Features
2232 * Entropy module now supports seed writing and reading
2233
2234Changes
2235 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2236 * Improvements to the CMake build system, contributed by Julian Ospald.
2237 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2238 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2239 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2240 * Use UTC time to check certificate validity.
2241 * Reject certificates with times not in UTC, per RFC 5280.
2242 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2243 against unwanted compiler optimizations
2244
2245Security
2246 * Forbid change of server certificate during renegotiation to prevent
2247 "triple handshake" attack when authentication mode is optional (the
2248 attack was already impossible when authentication is required).
2249 * Check notBefore timestamp of certificates and CRLs from the future.
2250 * Forbid sequence number wrapping
2251 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2252 TrustInSoft)
2253 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2254 It was possible to crash the server (and client) using crafted messages
2255 when a GCM suite was chosen.
2256
2257Bugfix
2258 * Fixed X.509 hostname comparison (with non-regular characters)
2259 * SSL now gracefully handles missing RNG
2260 * crypt_and_hash app checks MAC before final decryption
2261 * Fixed x509_crt_parse_path() bug on Windows platforms
2262 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2263 TrustInSoft)
2264 * Fixed potential overflow in certificate size verification in
2265 ssl_write_certificate() (found by TrustInSoft)
2266 * Fix ASM format in bn_mul.h
2267 * Potential memory leak in bignum_selftest()
2268 * Replaced expired test certificate
2269 * ssl_mail_client now terminates lines with CRLF, instead of LF
2270 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2271 * Fixed testing with out-of-source builds using cmake
2272 * Fixed version-major intolerance in server
2273 * Fixed CMake symlinking on out-of-source builds
2274 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2275 Alex Wilson.)
2276 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2277 out_ctr failed
2278 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2279 of one of them failed
2280 * x509_get_current_time() uses localtime_r() to prevent thread issues
2281 * Some example server programs were not sending the close_notify alert.
2282 * Potential memory leak in mpi_exp_mod() when error occurs during
2283 calculation of RR.
2284 * Improve interoperability by not writing extension length in ClientHello
2285 when no extensions are present (found by Matthew Page)
2286 * rsa_check_pubkey() now allows an E up to N
2287 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2288 * mpi_fill_random() was creating numbers larger than requested on
2289 big-endian platform when size was not an integer number of limbs
2290 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2291 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2292 size (found by TrustInSoft)
2293 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2294 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2295 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2296 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2297 * Fix base64_decode() to return and check length correctly (in case of
2298 tight buffers)
2299
Paul Bakker3a2c0562013-10-07 16:22:05 +02002300= Version 1.2.10 released 2013-10-07
2301Changes
2302 * Changed RSA blinding to a slower but thread-safe version
2303
2304Bugfix
2305 * Fixed memory leak in RSA as a result of introduction of blinding
2306 * Fixed ssl_pkcs11_decrypt() prototype
2307 * Fixed MSVC project files
2308
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002309= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002310Changes
2311 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2312
2313Bugfix
2314 * Fixed potential memory leak when failing to resume a session
2315 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2316 * Minor fixes
2317
2318Security
2319 * Fixed potential heap buffer overflow on large hostname setting
2320 * Fixed potential negative value misinterpretation in load_file()
2321 * RSA blinding on CRT operations to counter timing attacks
2322 (found by Cyril Arnaud and Pierre-Alain Fouque)
2323
Paul Bakkerde656232013-06-24 19:07:34 +02002324= Version 1.2.8 released 2013-06-19
2325Features
2326 * Parsing of PKCS#8 encrypted private key files
2327 * PKCS#12 PBE and derivation functions
2328 * Centralized module option values in config.h to allow user-defined
2329 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2330
2331Changes
2332 * HAVEGE random generator disabled by default
2333 * Internally split up x509parse_key() into a (PEM) handler function
2334 and specific DER parser functions for the PKCS#1 and unencrypted
2335 PKCS#8 private key formats
2336 * Added mechanism to provide alternative implementations for all
2337 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002338 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002339 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2340 old PBKDF2 module
2341
2342Bugfix
2343 * Secure renegotiation extension should only be sent in case client
2344 supports secure renegotiation
2345 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2346 * Fixed const correctness issues that have no impact on the ABI
2347 * x509parse_crt() now better handles PEM error situations
2348 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2349 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002350 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002351 * x509parse_crtpath() is now reentrant and uses more portable stat()
2352 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2353 * Fixed values for 2-key Triple DES in cipher layer
2354 * ssl_write_certificate_request() can handle empty ca_chain
2355
2356Security
2357 * A possible DoS during the SSL Handshake, due to faulty parsing of
2358 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2359
2360= Version 1.2.7 released 2013-04-13
2361Features
2362 * Ability to specify allowed ciphersuites based on the protocol version.
2363
2364Changes
2365 * Default Blowfish keysize is now 128-bits
2366 * Test suites made smaller to accommodate Raspberry Pi
2367
2368Bugfix
2369 * Fix for MPI assembly for ARM
2370 * GCM adapted to support sizes > 2^29
2371
Paul Bakker90f042d2013-03-11 11:38:44 +01002372= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01002373Bugfix
2374 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002375 * Corrected GCM counter incrementation to use only 32-bits instead of
2376 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002377 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002378 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002379 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerc0463502013-02-14 11:19:38 +01002380
Paul Bakkerb3869132013-02-28 17:21:01 +01002381Changes
2382 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2383 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2384 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002385 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2386 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002387 * Re-added handling for SSLv2 Client Hello when the define
2388 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002389 * The SSL session cache module (ssl_cache) now also retains peer_cert
2390 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002391
Paul Bakkere47b34b2013-02-27 14:48:00 +01002392Security
2393 * Removed further timing differences during SSL message decryption in
2394 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002395 * Removed timing differences due to bad padding from
2396 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2397 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002398
Paul Bakkerc7a2da42013-02-02 19:23:57 +01002399= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002400Changes
2401 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002402 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002403 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002404 * Sending of security-relevant alert messages that do not break
2405 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002406 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002407
Paul Bakker45829992013-01-03 14:52:21 +01002408Security
2409 * Removed timing differences during SSL message decryption in
2410 ssl_decrypt_buf() due to badly formatted padding
2411
Paul Bakker14c56a32013-01-25 17:11:37 +01002412= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002413Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002414 * More advanced SSL ciphersuite representation and moved to more dynamic
2415 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002416 * Added ssl_handshake_step() to allow single stepping the handshake process
2417
Paul Bakker40628ba2013-01-03 10:50:31 +01002418Bugfix
2419 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002420 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002421 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2422 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002423
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002424= Version 1.2.3 released 2012-11-26
2425Bugfix
2426 * Server not always sending correct CertificateRequest message
2427
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002428= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002429Changes
2430 * Added p_hw_data to ssl_context for context specific hardware acceleration
2431 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002432 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002433
Paul Bakker7c90da92012-11-23 14:02:40 +01002434Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002435 * Fixed client authentication compatibility
2436 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002437
Paul Bakker14926332012-11-20 10:58:09 +01002438= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002439Changes
2440 * Depth that the certificate verify callback receives is now numbered
2441 bottom-up (Peer cert depth is 0)
2442
Paul Bakker7a2538e2012-11-02 10:59:36 +00002443Bugfixes
2444 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002445 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002446 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2447 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002448 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2449 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002450 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002451
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002452= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002453Features
2454 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2455 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2456 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002457 * Added support for wildcard certificates
2458 * Added support for multi-domain certificates through the X509 Subject
2459 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002460 * Added preliminary ASN.1 buffer writing support
2461 * Added preliminary X509 Certificate Request writing support
2462 * Added key_app_writer example application
2463 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002464 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002465 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002466 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002467 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002468 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002469 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002470 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002471 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002472 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002473 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002474 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002475 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002476 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002477 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002478 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002479 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002480 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002481
Paul Bakker1504af52012-02-11 16:17:43 +00002482Changes
2483 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002484 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002485 * Fixed const-correctness mpi_get_bit()
2486 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002487 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002488 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002489 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002490 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2491 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002492 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002493 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002494 * Generalized external private key implementation handling (like PKCS#11)
2495 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002496 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002497 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002498 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002499
Paul Bakker37824582012-03-22 14:10:22 +00002500Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002501 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2502 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002503 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002504 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002505 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2506 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002507 * Handle encryption with private key and decryption with public key as per
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002508 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002509 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002510 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002511 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002512 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002513 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002514 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002515
Paul Bakker452d5322012-04-05 12:07:34 +00002516Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002517 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2518 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002519
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002520= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002521Bugfix
2522 * Fixed potential memory leak when failing to resume a session
2523 * Fixed potential file descriptor leaks
2524
2525Security
2526 * Potential buffer-overflow for ssl_read_record() (independently found by
2527 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2528 * Potential negative value misinterpretation in load_file()
2529 * Potential heap buffer overflow on large hostname setting
2530
Paul Bakker248fff52013-06-24 19:08:50 +02002531= Version 1.1.7 released on 2013-06-19
2532Changes
2533 * HAVEGE random generator disabled by default
2534
2535Bugfix
2536 * x509parse_crt() now better handles PEM error situations
2537 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2538 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002539 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002540 * Fixed values for 2-key Triple DES in cipher layer
2541 * ssl_write_certificate_request() can handle empty ca_chain
2542
2543Security
2544 * A possible DoS during the SSL Handshake, due to faulty parsing of
2545 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2546
2547= Version 1.1.6 released on 2013-03-11
2548Bugfix
2549 * Fixed net_bind() for specified IP addresses on little endian systems
2550
2551Changes
2552 * Allow enabling of dummy error_strerror() to support some use-cases
2553 * Debug messages about padding errors during SSL message decryption are
2554 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2555
2556Security
2557 * Removed timing differences during SSL message decryption in
2558 ssl_decrypt_buf()
2559 * Removed timing differences due to bad padding from
2560 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2561 operations
2562
Paul Bakker9d2bb652013-01-25 16:07:49 +01002563= Version 1.1.5 released on 2013-01-16
2564Bugfix
2565 * Fixed MPI assembly for SPARC64 platform
2566 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2567 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2568 with carry rollover
2569 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2570 * Prevent reading over buffer boundaries on X509 certificate parsing
2571 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2572 #52)
2573 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2574 Pégourié-Gonnard)
2575 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2576 Pégourié-Gonnard)
2577 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2578 * Memory leak when using RSA_PKCS_V21 operations fixed
2579 * Handle encryption with private key and decryption with public key as per
2580 RFC 2313
2581 * Fixes for MSVC6
2582
2583Security
2584 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2585 Vanderbeken)
2586
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002587= Version 1.1.4 released on 2012-05-31
2588Bugfix
2589 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2590 * Fixed potential heap corruption in x509_name allocation
2591 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2592
Paul Bakkerfad38932012-05-08 09:04:04 +00002593= Version 1.1.3 released on 2012-04-29
2594Bugfix
2595 * Fixed random MPI generation to not generate more size than requested.
2596
2597= Version 1.1.2 released on 2012-04-26
2598Bugfix
2599 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2600 Hui Dong)
2601
2602Security
2603 * Fixed potential memory corruption on miscrafted client messages (found by
2604 Frama-C team at CEA LIST)
2605 * Fixed generation of DHM parameters to correct length (found by Ruslan
2606 Yushchenko)
2607
Paul Bakker99955bf2012-01-23 09:31:41 +00002608= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002609Bugfix
2610 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2611 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002612 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002613 * Fixed multiple compiler warnings for VS6 and armcc
2614 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002615
Paul Bakker08a50882011-12-22 09:43:57 +00002616= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002617Features
2618 * Added ssl_session_reset() to allow better multi-connection pools of
2619 SSL contexts without needing to set all non-connection-specific
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002620 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002621 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2622 supported version to a server to help buggy server implementations.
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002623 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002624 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2625 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002626 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002627 * Added a generic entropy accumulator that provides support for adding
2628 custom entropy sources and added some generic and platform dependent
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002629 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002630
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002631Changes
2632 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002633 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2634 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002635 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002636 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002637 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002638 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2639 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002640 * Changed the defined key-length of DES ciphers in cipher.h to include the
2641 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002642 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002643 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002644 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2645 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002646 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2647 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002648 * Changed the used random function pointer to more flexible format. Renamed
2649 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002650 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002651 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002652 * Added permissive certificate parsing to x509parse_crt() and
2653 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002654 encountering a parse-error. Beware that the meaning of return values has
2655 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002656 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002657
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002658Bugfix
2659 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2660 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002661 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2662 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002663 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2664 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002665 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2666 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002667 * If certificate serial is longer than 32 octets, serial number is now
2668 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002669 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002670 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002671 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002672 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002673
Paul Bakker968bc982011-07-27 17:03:00 +00002674= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002675Features
2676 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002677 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002678
Paul Bakker42e59812011-06-09 15:55:41 +00002679Changes
2680 * The generic cipher and message digest layer now have normal error
2681 codes instead of integers
2682
Paul Bakker887bd502011-06-08 13:10:54 +00002683Bugfix
2684 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2685 #18)
2686
Paul Bakker828acb22011-05-27 09:25:42 +00002687= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002688Features
2689 * Added additional Cipher Block Modes to symmetric ciphers
2690 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002691 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002692 * Functions requiring File System functions can now be disabled
2693 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002694 * A error_strerror function() has been added to translate between
2695 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002696 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2697 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002698 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002699
Paul Bakker23986e52011-04-24 08:57:21 +00002700Changes
2701 * Major argument / variable rewrite. Introduced use of size_t
2702 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002703 better unsigned / signed use. Renamed internal bigint types
2704 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002705 * mpi_init() and mpi_free() now only accept a single MPI
2706 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002707 * The error codes have been remapped and combining error codes
2708 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002709 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002710 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2711 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002712 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2713 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2714 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2715 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002716 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2717 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002718 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002719
Paul Bakker3efa5752011-04-01 12:23:26 +00002720= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002721Features
2722 * Added support for PKCS#1 v2.1 encoding and thus support
2723 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002724 * Reading of Public Key files incorporated into default x509
2725 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002726 * Added mpi_fill_random() for centralized filling of big numbers
2727 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002728
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002729Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002730 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002731 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002732 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002733 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002734 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002735
2736Bugfix
2737 * Debug output of MPI's now the same independent of underlying
2738 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002739 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002740 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2741 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002742 * Fixed proper handling of RSASSA-PSS verification with variable
2743 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002744
Paul Bakker345a6fe2011-02-28 21:20:02 +00002745= Version 0.99-pre3 released on 2011-02-28
2746This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002747Features
2748 * Parsing PEM private keys encrypted with DES and AES
2749 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002750 * Added crl_app program to allow easy reading and
2751 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002752
2753Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002754 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002755 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002756 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002757
Paul Bakker400ff6f2011-02-20 10:40:16 +00002758Bugfixes
2759 * Corrected parsing of UTCTime dates before 1990 and
2760 after 1950
2761 * Support more exotic OID's when parsing certificates
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002762 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002763 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002764 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002765 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002766 * Do not bail out if no client certificate specified. Try
2767 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002768 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002769
Paul Bakker345a6fe2011-02-28 21:20:02 +00002770Security fixes
2771 * Fixed a possible Man-in-the-Middle attack on the
2772 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002773 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002774
Paul Bakker9fc46592011-01-30 16:59:02 +00002775= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00002776Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00002777Note: Most of these features have been donated by Fox-IT
2778 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00002779 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00002780 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00002781 certificate fields, including Key Usage
2782 * Improved certificate verification and verification
2783 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00002784 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00002785 * Improvements to support integration in other
2786 applications:
2787 + Added generic message digest and cipher wrapper
2788 + Improved information about current capabilities,
2789 status, objects and configuration
2790 + Added verification callback on certificate chain
2791 verification to allow external blacklisting
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002792 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00002793 * Added support for PKCS#11 through the use of the
2794 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00002795
Paul Bakkerb6194992011-01-16 21:40:22 +00002796Changes
2797 * x509parse_time_expired() checks time in addition to
2798 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00002799 * The ciphers member of ssl_context and the cipher member
2800 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01002801 ciphersuite respectively. This clarifies the difference
2802 with the generic cipher layer and is better naming
2803 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00002804
Paul Bakker99ed6782011-01-05 14:48:42 +00002805= Version 0.14.0 released on 2010-08-16
2806Features
2807 * Added support for SSL_EDH_RSA_AES_128_SHA and
2808 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
2809 * Added compile-time and run-time version information
2810 * Expanded ssl_client2 arguments for more flexibility
2811 * Added support for TLS v1.1
2812
2813Changes
2814 * Made Makefile cleaner
2815 * Removed dependency on rand() in rsa_pkcs1_encrypt().
2816 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01002817 changed the prototype of rsa_pkcs1_encrypt(),
2818 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00002819 * Some SSL defines were renamed in order to avoid
2820 future confusion
2821
2822Bug fixes
2823 * Fixed CMake out of source build for tests (found by
2824 kkert)
2825 * rsa_check_private() now supports PKCS1v2 keys as well
2826 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
2827 generator
2828
2829= Version 0.13.1 released on 2010-03-24
2830Bug fixes
2831 * Fixed Makefile in library that was mistakenly merged
2832 * Added missing const string fixes
2833
2834= Version 0.13.0 released on 2010-03-21
2835Features
2836 * Added option parsing for host and port selection to
2837 ssl_client2
2838 * Added support for GeneralizedTime in X509 parsing
2839 * Added cert_app program to allow easy reading and
2840 printing of X509 certificates from file or SSL
2841 connection.
2842
2843Changes
2844 * Added const correctness for main code base
2845 * X509 signature algorithm determination is now
2846 in a function to allow easy future expansion
2847 * Changed symmetric cipher functions to
2848 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01002849 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00002850 * Added reset function for HMAC context as speed-up
2851 for specific use-cases
2852
2853Bug fixes
2854 * Fixed bug resulting in failure to send the last
2855 certificate in the chain in ssl_write_certificate() and
2856 ssl_write_certificate_request() (found by fatbob)
2857 * Added small fixes for compiler warnings on a Mac
2858 (found by Frank de Brabander)
2859 * Fixed algorithmic bug in mpi_is_prime() (found by
2860 Smbat Tonoyan)
2861
2862= Version 0.12.1 released on 2009-10-04
2863Changes
2864 * Coverage test definitions now support 'depends_on'
2865 tagging system.
2866 * Tests requiring specific hashing algorithms now honor
2867 the defines.
2868
2869Bug fixes
2870 * Changed typo in #ifdef in x509parse.c (found
2871 by Eduardo)
2872
2873= Version 0.12.0 released on 2009-07-28
2874Features
2875 * Added CMake makefiles as alternative to regular Makefiles.
2876 * Added preliminary Code Coverage tests for AES, ARC4,
2877 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
2878 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
2879 and X509parse.
2880
2881Changes
2882 * Error codes are not (necessarily) negative. Keep
2883 this is mind when checking for errors.
2884 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
2885 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
2886 * Changed interface for AES and Camellia setkey functions
2887 to indicate invalid key lengths.
2888
2889Bug fixes
2890 * Fixed include location of endian.h on FreeBSD (found by
2891 Gabriel)
2892 * Fixed include location of endian.h and name clash on
2893 Apples (found by Martin van Hensbergen)
2894 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
2895 required HMAC ipad and opad variables are not cleared.
2896 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01002897 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00002898 POLARSSL_HAVE_LONGLONG not defined (found by Giles
2899 Bathgate).
2900 * Fixed incorrect handling of negative strings in
2901 mpi_read_string() (found by code coverage tests).
2902 * Fixed segfault on handling empty rsa_context in
2903 rsa_check_pubkey() and rsa_check_privkey() (found by
2904 code coverage tests).
2905 * Fixed incorrect handling of one single negative input
2906 value in mpi_add_abs() (found by code coverage tests).
2907 * Fixed incorrect handling of negative first input
2908 value in mpi_sub_abs() (found by code coverage tests).
2909 * Fixed incorrect handling of negative first input
2910 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
2911 change also affects mpi_write_string() (found by code
2912 coverage tests).
2913 * Corrected is_prime() results for 0, 1 and 2 (found by
2914 code coverage tests).
2915 * Fixed Camellia and XTEA for 64-bit Windows systems.
2916
2917= Version 0.11.1 released on 2009-05-17
2918 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
2919 SHA-512 in rsa_pkcs1_sign()
2920
2921= Version 0.11.0 released on 2009-05-03
2922 * Fixed a bug in mpi_gcd() so that it also works when both
2923 input numbers are even and added testcases to check
2924 (found by Pierre Habouzit).
2925 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
2926 one way hash functions with the PKCS#1 v1.5 signing and
2927 verification.
2928 * Fixed minor bug regarding mpi_gcd located within the
2929 POLARSSL_GENPRIME block.
2930 * Fixed minor memory leak in x509parse_crt() and added better
2931 handling of 'full' certificate chains (found by Mathias
2932 Olsson).
2933 * Centralized file opening and reading for x509 files into
2934 load_file()
2935 * Made definition of net_htons() endian-clean for big endian
2936 systems (Found by Gernot).
2937 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01002938 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00002939 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
2940 responsible for crashes and unwanted behaviour.
2941 * Added support for Certificate Revocation List (CRL) parsing.
2942 * Added support for CRL revocation to x509parse_verify() and
2943 SSL/TLS code.
2944 * Fixed compatibility of XTEA and Camellia on a 64-bit system
2945 (found by Felix von Leitner).
2946
2947= Version 0.10.0 released on 2009-01-12
2948 * Migrated XySSL to PolarSSL
2949 * Added XTEA symmetric cipher
2950 * Added Camellia symmetric cipher
2951 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
2952 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
2953 * Fixed dangerous bug that can cause a heap overflow in
2954 rsa_pkcs1_decrypt (found by Christophe Devine)
2955
2956================================================================
2957XySSL ChangeLog
2958
2959= Version 0.9 released on 2008-03-16
2960
2961 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
2962 * Enabled support for large files by default in aescrypt2.c
2963 * Preliminary openssl wrapper contributed by David Barrett
2964 * Fixed a bug in ssl_write() that caused the same payload to
2965 be sent twice in non-blocking mode when send returns EAGAIN
2966 * Fixed ssl_parse_client_hello(): session id and challenge must
2967 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
2968 * Added user-defined callback debug function (Krystian Kolodziej)
2969 * Before freeing a certificate, properly zero out all cert. data
2970 * Fixed the "mode" parameter so that encryption/decryption are
2971 not swapped on PadLock; also fixed compilation on older versions
2972 of gcc (bug reported by David Barrett)
2973 * Correctly handle the case in padlock_xcryptcbc() when input or
Antonin Décimo8fd91562019-01-23 15:24:37 +01002974 output data is non-aligned by falling back to the software
Paul Bakker99ed6782011-01-05 14:48:42 +00002975 implementation, as VIA Nehemiah cannot handle non-aligned buffers
2976 * Fixed a memory leak in x509parse_crt() which was reported by Greg
2977 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
2978 Matthew Page who reported several bugs
2979 * Fixed x509_get_ext() to accept some rare certificates which have
2980 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
2981 * Added support on the client side for the TLS "hostname" extension
2982 (patch contributed by David Patino)
2983 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
2984 string is passed as the CN (bug reported by spoofy)
2985 * Added an option to enable/disable the BN assembly code
2986 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
2987 * Disabled obsolete hash functions by default (MD2, MD4); updated
2988 selftest and benchmark to not test ciphers that have been disabled
2989 * Updated x509parse_cert_info() to correctly display byte 0 of the
2990 serial number, setup correct server port in the ssl client example
2991 * Fixed a critical denial-of-service with X.509 cert. verification:
2992 peer may cause xyssl to loop indefinitely by sending a certificate
2993 for which the RSA signature check fails (bug reported by Benoit)
2994 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
2995 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
2996 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
2997 * Modified ssl_parse_client_key_exchange() to protect against
2998 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
2999 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3000 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3001 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3002 David Barrett and Dusan Semen
3003
3004= Version 0.8 released on 2007-10-20
3005
3006 * Modified the HMAC functions to handle keys larger
3007 than 64 bytes, thanks to Stephane Desneux and gary ng
3008 * Fixed ssl_read_record() to properly update the handshake
3009 message digests, which fixes IE6/IE7 client authentication
3010 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3011 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3012 * Added user-defined callbacks for handling I/O and sessions
3013 * Added lots of debugging output in the SSL/TLS functions
3014 * Added preliminary X.509 cert. writing by Pascal Vizeli
3015 * Added preliminary support for the VIA PadLock routines
3016 * Added AES-CFB mode of operation, contributed by chmike
3017 * Added an SSL/TLS stress testing program (ssl_test.c)
3018 * Updated the RSA PKCS#1 code to allow choosing between
3019 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3020 * Updated ssl_read() to skip 0-length records from OpenSSL
3021 * Fixed the make install target to comply with *BSD make
3022 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3023 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3024 * Fixed a long standing memory leak in mpi_is_prime()
3025 * Replaced realloc with malloc in mpi_grow(), and set
3026 the sign of zero as positive in mpi_init() (reported
3027 by Jonathan M. McCune)
3028
3029= Version 0.7 released on 2007-07-07
3030
3031 * Added support for the MicroBlaze soft-core processor
3032 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3033 connections from being established with non-blocking I/O
3034 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3035 * Fixed the "PIC register ebx clobbered in asm" bug
3036 * Added HMAC starts/update/finish support functions
3037 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3038 * Fixed the net_set_*block routines, thanks to Andreas
3039 * Added a few demonstration programs: md5sum, sha1sum,
3040 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3041 * Added new bignum import and export helper functions
3042 * Rewrote README.txt in program/ssl/ca to better explain
3043 how to create a test PKI
3044
3045= Version 0.6 released on 2007-04-01
3046
3047 * Ciphers used in SSL/TLS can now be disabled at compile
3048 time, to reduce the memory footprint on embedded systems
3049 * Added multiply assembly code for the TriCore and modified
3050 havege_struct for this processor, thanks to David Patiño
3051 * Added multiply assembly code for 64-bit PowerPCs,
3052 thanks to Peking University and the OSU Open Source Lab
3053 * Added experimental support of Quantum Cryptography
3054 * Added support for autoconf, contributed by Arnaud Cornet
3055 * Fixed "long long" compilation issues on IA-64 and PPC64
3056 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3057 was not being correctly defined on ARM and MIPS
3058
3059= Version 0.5 released on 2007-03-01
3060
3061 * Added multiply assembly code for SPARC and Alpha
3062 * Added (beta) support for non-blocking I/O operations
3063 * Implemented session resuming and client authentication
3064 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3065 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3066 * Improved the performance of the EDH key exchange
3067 * Fixed a bug that caused valid packets with a payload
3068 size of 16384 bytes to be rejected
3069
3070= Version 0.4 released on 2007-02-01
3071
3072 * Added support for Ephemeral Diffie-Hellman key exchange
3073 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3074 * Various improvement to the modular exponentiation code
3075 * Rewrote the headers to generate the API docs with doxygen
3076 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3077 generated) and in ssl_parse_client_hello (max. client
3078 version was not properly set), thanks to Didier Rebeix
3079 * Fixed another bug in ssl_parse_client_hello: clients with
3080 cipherlists larger than 96 bytes were incorrectly rejected
3081 * Fixed a couple memory leak in x509_read.c
3082
3083= Version 0.3 released on 2007-01-01
3084
3085 * Added server-side SSLv3 and TLSv1.0 support
3086 * Multiple fixes to enhance the compatibility with g++,
3087 thanks to Xosé Antón Otero Ferreira
3088 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003089 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003090 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3091 * Updated timing.c for improved compatibility with i386
3092 and 486 processors, thanks to Arnaud Cornet
3093
3094= Version 0.2 released on 2006-12-01
3095
3096 * Updated timing.c to support ARM and MIPS arch
3097 * Updated the MPI code to support 8086 on MSVC 1.5
3098 * Added the copyright notice at the top of havege.h
3099 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3100 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3101 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3102 * Fixed a bug in rsa_check_privkey that would wrongly cause
3103 valid RSA keys to be dismissed (thanks to oldwolf)
3104 * Fixed a bug in mpi_is_prime that caused some primes to fail
3105 the Miller-Rabin primality test
3106
3107 I'd also like to thank Younès Hafri for the CRUX linux port,
3108 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3109 who maintains the Debian package :-)
3110
3111= Version 0.1 released on 2006-11-01