Use-after-free vulnerability in Mozilla Firefox 10.x before 10.0.1, Thunderbird 10.x before 10.0.1, and SeaMonkey 2.7 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger failure of an nsXBLDocumentInfo::ReadPrototypeBindings function call, related to the cycle collector's access to a hash table containing a stale XBL binding.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15017
https://bugzilla.mozilla.org/show_bug.cgi?id=724284
http://www.ubuntu.com/usn/USN-1360-1
http://www.securityfocus.com/bid/51975
http://www.mozilla.org/security/announce/2012/mfsa2012-10.html
http://www.mandriva.com/security/advisories?name=MDVSA-2012:018
http://www.mandriva.com/security/advisories?name=MDVSA-2012:017
http://secunia.com/advisories/49055
http://secunia.com/advisories/48110
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00012.html