Heap-based buffer overflow in the SVGTextFrame class in Mozilla Firefox before 38.0, Firefox ESR 31.x before 31.7, and Thunderbird before 31.7 allows remote attackers to execute arbitrary code via crafted SVG graphics data in conjunction with a crafted Cascading Style Sheets (CSS) token sequence.
https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/#thunderbird31.7
https://security.gentoo.org/glsa/201605-06
https://bugzilla.mozilla.org/show_bug.cgi?id=1149542
http://www.ubuntu.com/usn/USN-2603-1
http://www.ubuntu.com/usn/USN-2602-1
http://www.securityfocus.com/bid/74611
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.mozilla.org/security/announce/2015/mfsa2015-48.html
http://www.debian.org/security/2015/dsa-3264
http://www.debian.org/security/2015/dsa-3260
http://rhn.redhat.com/errata/RHSA-2015-1012.html
http://rhn.redhat.com/errata/RHSA-2015-0988.html
http://lists.opensuse.org/opensuse-updates/2015-05/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00012.html