CVE-2012-4409
Description
Stack-based buffer overflow in the check_file_head function in extra.c in mcrypt 2.6.8 and earlier allows user-assisted remote attackers to execute arbitrary code via an encrypted file with a crafted header containing long salt data that is not properly handled during decryption.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
mcrypt 2.6.8 - Stack Buffer Overflow (PoC)
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.6.8-1.1 |
| sid | Fixed | 2.6.8-1.1 |
| forky | Fixed | 2.6.8-1.1 |
| bullseye | Fixed | 2.6.8-1.1 |
| bookworm | Fixed | 2.6.8-1.1 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086519.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/087542.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088281.html
- http://packetstormsecurity.org/files/116268/mcrypt-2.6.8-Buffer-Overflow-Proof-Of-Concept.html
- http://secunia.com/advisories/50507
- http://secunia.com/advisories/51010
- http://www.openwall.com/lists/oss-security/2012/09/06/4
- http://www.securitytracker.com/id?1027532
- https://bugzilla.redhat.com/show_bug.cgi?id=855029
- https://security-tracker.debian.org/tracker/CVE-2012-4409
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.