Integer overflow in the FRAMESET element implementation in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 might allow remote attackers to execute arbitrary code via a large number of values in the cols (aka columns) attribute, leading to a heap-based buffer overflow.
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
https://bugzilla.mozilla.org/show_bug.cgi?id=576447
http://secunia.com/advisories/42867
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11519
http://support.avaya.com/css/P8/documents/100110210
http://support.avaya.com/css/P8/documents/100112690
http://www.debian.org/security/2010/dsa-2106
http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
http://www.mozilla.org/security/announce/2010/mfsa2010-50.html