The nsDocument::SetScriptGlobalObject function in content/base/src/nsDocument.cpp in Mozilla Firefox 3.5.x before 3.5.2, when certain add-ons are enabled, does not properly handle a Link HTTP header, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted web page, related to an incorrect security wrapper.
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00261.html
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00198.html
https://bugzilla.mozilla.org/show_bug.cgi?id=498897
http://www.vupen.com/english/advisories/2009/2142
http://www.securityfocus.com/bid/35928
http://www.mozilla.org/security/announce/2009/mfsa2009-46.html
http://sunsolve.sun.com/search/document.do?assetkey=1-66-266148-1