X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Ft1_enc.c;h=f7bdeb3b9dbac573ff9539dc8638aab45b8df432;hp=201ca9ad6de20299a52870bf85257357fb1ae43b;hb=d414a5a0f041af6ef460150b093049ff80921fbf;hpb=9eb4460e68ddbd7ba048349dadec5ae66a9d3756

diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 201ca9ad6d..f7bdeb3b9d 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -889,6 +889,8 @@ int tls1_enc(SSL *s, int send)
 			if (s->version >= TLS1_1_VERSION
 				&& EVP_CIPHER_CTX_mode(ds) == EVP_CIPH_CBC_MODE)
 				{
+				if (bs > (int)rec->length)
+					return -1;
 				rec->data += bs;    /* skip the explicit IV */
 				rec->input += bs;
 				rec->length -= bs;