CVE-2012-0449
Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a malformed XSLT stylesheet that is embedded in a document.
Date published : 2012-02-01
http://www.securityfocus.com/bid/51754
http://www.mozilla.org/security/announce/2012/mfsa2012-08.html