Use-after-free vulnerability in the nsSMILTimeValueSpec::IsEventBased function in Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 allows remote attackers to cause a denial of service (heap memory corruption) or possibly execute arbitrary code by interacting with objects used for SMIL Timing.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16077
https://bugzilla.mozilla.org/show_bug.cgi?id=752902
http://www.ubuntu.com/usn/USN-1510-1
http://www.ubuntu.com/usn/USN-1509-2
http://www.ubuntu.com/usn/USN-1509-1
http://www.securitytracker.com/id?1027258
http://www.securitytracker.com/id?1027257
http://www.securitytracker.com/id?1027256
http://www.securityfocus.com/bid/54578
http://www.mozilla.org/security/announce/2012/mfsa2012-44.html
http://secunia.com/advisories/49994
http://secunia.com/advisories/49993
http://secunia.com/advisories/49992
http://secunia.com/advisories/49979
http://secunia.com/advisories/49977
http://secunia.com/advisories/49972
http://secunia.com/advisories/49968
http://secunia.com/advisories/49965
http://rhn.redhat.com/errata/RHSA-2012-1088.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html