Fix error handling in RAND_DRBG_set

[openssl.git] / ssl / s3_cbc.c

diff --git a/ssl/s3_cbc.c b/ssl/s3_cbc.c
index bab9b2681601a8c604397eeee25ec6628b95cc5c..8e11864b07f028776261e9c23879ee6b3a70b662 100644 (file)
--- a/ssl/s3_cbc.c
+++ b/ssl/s3_cbc.c
@@ -9,6 +9,7 @@
 
 #include "internal/constant_time_locl.h"
 #include "ssl_locl.h"
+#include "internal/cryptlib.h"
 
 #include <openssl/md5.h>
 #include <openssl/sha.h>
@@ -255,12 +256,13 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
      * of hash termination (0x80 + 64-bit length) don't fit in the final
      * block, we say that the final two blocks can vary based on the padding.
      * TLSv1 has MACs up to 48 bytes long (SHA-384) and the padding is not
-     * required to be minimal. Therefore we say that the final six blocks can
+     * required to be minimal. Therefore we say that the final |variance_blocks|
+     * blocks can
      * vary based on the padding. Later in the function, if the message is
      * short and there obviously cannot be this many blocks then
      * variance_blocks can be reduced.
      */
-    variance_blocks = is_sslv3 ? 2 : 6;
+    variance_blocks = is_sslv3 ? 2 : ( ((255 + 1 + md_size + md_block_size - 1) / md_block_size) + 1);
     /*
      * From now on we're dealing with the MAC, which conceptually has 13
      * bytes of `header' before the start of the data (TLS) or 71/75 bytes