NetworkUtils.cpp in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors.
https://bugzilla.mozilla.org/show_bug.cgi?id=1168959
http://www.ubuntu.com/usn/USN-2754-1
http://www.ubuntu.com/usn/USN-2743-4
http://www.ubuntu.com/usn/USN-2743-3
http://www.ubuntu.com/usn/USN-2743-2
http://www.ubuntu.com/usn/USN-2743-1
http://www.securitytracker.com/id/1033640
http://www.securityfocus.com/bid/76816
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.mozilla.org/security/announce/2015/mfsa2015-112.html
http://www.debian.org/security/2015/dsa-3365
http://rhn.redhat.com/errata/RHSA-2015-1852.html
http://rhn.redhat.com/errata/RHSA-2015-1834.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html