Mozilla Firefox is vulnerable to access restriction bypass. Due to the flaws in Firefox, it allows a malicious website to bypass intended restrictions, possibly leading to information disclosure, or Firefox executing arbitrary code. Note that the information disclosure issue could possibly be combined with other flaws to achieve arbitrary code execution.
lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html
rhn.redhat.com/errata/RHSA-2012-1351.html
secunia.com/advisories/50856
secunia.com/advisories/50892
secunia.com/advisories/50904
secunia.com/advisories/50935
secunia.com/advisories/50936
secunia.com/advisories/50984
secunia.com/advisories/51181
secunia.com/advisories/55318
www.debian.org/security/2012/dsa-2565
www.debian.org/security/2012/dsa-2569
www.debian.org/security/2012/dsa-2572
www.mandriva.com/security/advisories?name=MDVSA-2012:163
www.mozilla.org/security/announce/2012/mfsa2012-77.html
www.mozilla.org/security/known-vulnerabilities/firefoxESR.html
www.securityfocus.com/bid/55922
www.ubuntu.com/usn/USN-1611-1
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=775868
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16834
rhn.redhat.com/errata/RHSA-2012-1350.html