Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-5840.
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html
http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html
http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html
http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html
http://rhn.redhat.com/errata/RHSA-2012-1482.html
http://rhn.redhat.com/errata/RHSA-2012-1483.html
https://bugzilla.mozilla.org/show_bug.cgi?id=795804
http://secunia.com/advisories/51359
http://secunia.com/advisories/51360
http://secunia.com/advisories/51369
http://secunia.com/advisories/51370
http://secunia.com/advisories/51381
http://secunia.com/advisories/51434
http://secunia.com/advisories/51439
http://secunia.com/advisories/51440
https://exchange.xforce.ibmcloud.com/vulnerabilities/80187
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16884
http://www.mandriva.com/security/advisories?name=MDVSA-2012:173
http://www.mozilla.org/security/announce/2012/mfsa2012-105.html
http://www.ubuntu.com/usn/USN-1636-1
http://www.ubuntu.com/usn/USN-1638-1