CVE-2012-4409 Information

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.

Reference

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