diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2016-08-19 23:28:29 +0100 |
---|---|---|
committer | Matt Caswell <matt@openssl.org> | 2016-08-24 14:12:51 +0100 |
commit | 55d83bf7c10c7b205fffa23fa7c3977491e56c07 (patch) | |
tree | 1829db8e3fe3ec8542309a5239ce66dde10b77cd /crypto/mdc2 | |
parent | ef28891bab7054667f2f6739f6d376c38b3ca1cc (diff) |
Avoid overflow in MDC2_Update()
Thanks to Shi Lei for reporting this issue.
CVE-2016-6303
Reviewed-by: Matt Caswell <matt@openssl.org>
Diffstat (limited to 'crypto/mdc2')
-rw-r--r-- | crypto/mdc2/mdc2dgst.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/mdc2/mdc2dgst.c b/crypto/mdc2/mdc2dgst.c index 6397a47e92..37d99f48a5 100644 --- a/crypto/mdc2/mdc2dgst.c +++ b/crypto/mdc2/mdc2dgst.c @@ -42,7 +42,7 @@ 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; |