diff options
| author | Dr. Stephen Henson <steve@openssl.org> | 2012-05-10 14:33:11 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2012-05-10 14:33:11 +0000 |
| commit | 36dd4cba3dfa87aebd59d10c844fdda3a31b89db (patch) | |
| tree | 2d1edd5b93a10cc5241b95ac4b1a5845449d299d /ssl | |
| parent | 3978429ad5a07907eae59ff9d20fba117208ef23 (diff) | |
Sanity check record length before skipping explicit IV in DTLS
to fix DoS attack.
Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
fuzzing as a service testing platform.
(CVE-2012-2333)
Diffstat (limited to 'ssl')
| -rw-r--r-- | ssl/d1_enc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ssl/d1_enc.c b/ssl/d1_enc.c index bb96c8a20c..baa75f9186 100644 --- a/ssl/d1_enc.c +++ b/ssl/d1_enc.c @@ -249,7 +249,7 @@ int dtls1_enc(SSL *s, int send) } /* TLS 1.0 does not bound the number of padding bytes by the block size. * All of them must have value 'padding_length'. */ - if (i > (int)rec->length) + if (i + bs > (int)rec->length) { /* Incorrect padding. SSLerr() and ssl3_alert are done * by caller: we don't want to reveal whether this is |