Use-after-free vulnerability in the nsINode::GetParentNode function in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors involving a DOM modification at the time of a SetBody mutation event.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18945
https://bugzilla.mozilla.org/show_bug.cgi?id=883313
http://www.mozilla.org/security/announce/2013/mfsa2013-64.html