firefox is vulnerable to arbitrary code execution. A flaw was found in the way Firefox handled malformed JPEG images. A website containing a malicious JPEG image could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox.
downloads.avaya.com/css/P8/documents/100133195
www.mandriva.com/security/advisories?name=MDVSA-2011:041
www.mandriva.com/security/advisories?name=MDVSA-2011:042
www.mozilla.org/security/announce/2011/mfsa2011-09.html
www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.14
www.securityfocus.com/bid/46651
access.redhat.com/errata/RHSA-2011:0310
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=610601
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14486