CVE-2011-3005
Use-after-free vulnerability in Mozilla Firefox 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted OGG headers in a .ogg file.
Date published : 2011-09-28
http://www.mozilla.org/security/announce/2011/mfsa2011-44.html