[openssl-commits] [openssl] OpenSSL_1_0_1-stable update
Matt Caswell
matt at openssl.org
Wed Aug 24 13:27:56 UTC 2016
The branch OpenSSL_1_0_1-stable has been updated
via 2b4029e68fd7002d2307e6c3cde0f3784eef9c83 (commit)
from e95f5e03f6f1f8d3f6cbe4b7fa48e57b4cf8fd60 (commit)
- Log -----------------------------------------------------------------
commit 2b4029e68fd7002d2307e6c3cde0f3784eef9c83
Author: Dr. Stephen Henson <steve at openssl.org>
Date: Fri Aug 19 23:28:29 2016 +0100
Avoid overflow in MDC2_Update()
Thanks to Shi Lei for reporting this issue.
CVE-2016-6303
Reviewed-by: Matt Caswell <matt at openssl.org>
(cherry picked from commit 55d83bf7c10c7b205fffa23fa7c3977491e56c07)
-----------------------------------------------------------------------
Summary of changes:
crypto/mdc2/mdc2dgst.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/mdc2/mdc2dgst.c b/crypto/mdc2/mdc2dgst.c
index 6615cf8..2dce493 100644
--- a/crypto/mdc2/mdc2dgst.c
+++ b/crypto/mdc2/mdc2dgst.c
@@ -91,7 +91,7 @@ int MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len)
i = c->num;
if (i != 0) {
- if (i + len < MDC2_BLOCK) {
+ if (len < MDC2_BLOCK - i) {
/* partial block */
memcpy(&(c->data[i]), in, len);
c->num += (int)len;
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