The nsTreeContentView function in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 does not properly handle node removal in XUL trees, which allows remote attackers to execute arbitrary code via vectors involving access to deleted memory, related to a "dangling pointer vulnerability."
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
http://secunia.com/advisories/42867
http://support.avaya.com/css/P8/documents/100110210
http://support.avaya.com/css/P8/documents/100112690
http://www.debian.org/security/2010/dsa-2106
http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
http://www.mozilla.org/security/announce/2010/mfsa2010-56.html
http://www.securityfocus.com/bid/43097
http://www.vupen.com/english/advisories/2010/2323
http://www.vupen.com/english/advisories/2011/0061
http://www.zerodayinitiative.com/advisories/ZDI-10-171/
https://bugzilla.mozilla.org/show_bug.cgi?id=576070
https://exchange.xforce.ibmcloud.com/vulnerabilities/61661
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12136