CVE-2012-4409

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 15.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-11-21 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Mcrypt: through 2.6.8; 2.6.4, 2.6.5, 2.6.6, 2.6.7

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
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

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