Use-after-free vulnerability in the AppendElements function in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 on Linux, when the Fluendo MP3 plugin for GStreamer is used, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted MP3 file.
https://security.gentoo.org/glsa/201512-10
https://bugzilla.mozilla.org/show_bug.cgi?id=1106596
http://www.ubuntu.com/usn/USN-2552-1
http://www.ubuntu.com/usn/USN-2550-1
http://www.securitytracker.com/id/1032000
http://www.securitytracker.com/id/1031996
http://www.securityfocus.com/bid/73463
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.mozilla.org/security/announce/2015/mfsa2015-31.html
http://www.debian.org/security/2015/dsa-3212
http://www.debian.org/security/2015/dsa-3211
http://rhn.redhat.com/errata/RHSA-2015-0771.html
http://rhn.redhat.com/errata/RHSA-2015-0766.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00003.html