Launchpad.net

CVE 2012-4185

Buffer overflow in the nsCharTraits::length function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

See the CVE page on Mitre.org for more details.