Use-after-free vulnerability in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 might allow remote attackers to execute arbitrary code via vectors related to incorrect AttributeChildRemoved notifications that affect access to removed nsDOMAttribute child nodes.
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00011.html
https://bugzilla.mozilla.org/show_bug.cgi?id=708198
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14697
http://www.mandriva.com/security/advisories?name=MDVSA-2012:013
http://www.mozilla.org/security/announce/2012/mfsa2012-04.html