Mozilla Firefox is vulnerable to Use-After-Free. Due to a flaw in the processing of malformed web content, web page containing malicious content could cause Firefox to terminate unexpectedly or, potentially, execute arbitrary code with the privileges of the user running Firefox.
lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html
lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html
lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html
lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html
lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html
lists.opensuse.org/opensuse-updates/2013-12/msg00085.html
lists.opensuse.org/opensuse-updates/2013-12/msg00086.html
lists.opensuse.org/opensuse-updates/2013-12/msg00087.html
lists.opensuse.org/opensuse-updates/2013-12/msg00119.html
lists.opensuse.org/opensuse-updates/2013-12/msg00120.html
lists.opensuse.org/opensuse-updates/2013-12/msg00121.html
lists.opensuse.org/opensuse-updates/2014-01/msg00002.html
rhn.redhat.com/errata/RHSA-2013-1812.html
www.mozilla.org/security/announce/2013/mfsa2013-109.html
www.mozilla.org/security/known-vulnerabilities/firefoxESR.html
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.securitytracker.com/id/1029470
www.securitytracker.com/id/1029476
www.ubuntu.com/usn/USN-2052-1
www.ubuntu.com/usn/USN-2053-1
access.redhat.com/security/cve/CVE-2013-0772
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=926361
rhn.redhat.com/errata/RHSA-2013-1812.html
security.gentoo.org/glsa/201504-01