|Multiple unspecified vulnerabilities in the browser engine in Mozilla
Firefox 4.x through 11.0, Firefox ESR 10.x before 10.0.4, Thunderbird
5.0 through 11.0, Thunderbird ESR 10.x before 10.0.4, and SeaMonkey
before 2.9 allow remote attackers to cause a denial of service (memory
corruption and application crash) or possibly execute arbitrary code
via unknown vectors.