cert_app: init entropy unconditionally
When mbedtls_entropy_free() is called without mbedtls_entropy_init() entropy is uninitialized and contains garbage which may lead to segmentation fault.
Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index 042b80e..b212ac3 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -162,6 +162,7 @@
mbedtls_ssl_init(&ssl);
mbedtls_ssl_config_init(&conf);
mbedtls_x509_crt_init(&cacert);
+ mbedtls_entropy_init(&entropy);
#if defined(MBEDTLS_X509_CRL_PARSE_C)
mbedtls_x509_crl_init(&cacrl);
#else
@@ -347,7 +348,6 @@
mbedtls_printf("\n . Seeding the random number generator...");
fflush(stdout);
- mbedtls_entropy_init(&entropy);
if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen(pers))) != 0) {