Mozilla Firefox 7.0 and Thunderbird 7.0, when the Direct2D (aka D2D) API is used on Windows in conjunction with the Azure graphics back-end, allow remote attackers to bypass the Same Origin Policy, and obtain sensitive image data from a different domain, by inserting this data into a canvas. NOTE: this issue exists because of a CVE-2011-2986 regression.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14025
https://bugzilla.mozilla.org/show_bug.cgi?id=655836
http://www.securityfocus.com/bid/50591
http://www.mozilla.org/security/announce/2011/mfsa2011-50.html
http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html