Buffer overflow in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, and SeaMonkey before 2.0.12, on Windows allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a long string that triggers construction of a long text run.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14254
https://bugzilla.mozilla.org/show_bug.cgi?id=607160
http://www.securityfocus.com/bid/46660
http://www.mozilla.org/security/announce/2011/mfsa2011-07.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:041