Mozilla Firefox before 7.0 and SeaMonkey before 2.4 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an unspecified WebGL test case that triggers a memory-allocation error and a resulting out-of-bounds write operation.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14054
https://bugzilla.mozilla.org/show_bug.cgi?id=682335
http://www.mozilla.org/security/announce/2011/mfsa2011-41.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:141