The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.
https://security.gentoo.org/glsa/201701-63
https://security.gentoo.org/glsa/201701-35
http://www.ubuntu.com/usn/USN-2902-1
http://www.securityfocus.com/bid/82991
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.mozilla.org/security/announce/2016/mfsa2016-14.html
http://www.debian.org/security/2016/dsa-3479
http://rhn.redhat.com/errata/RHSA-2016-0695.html
http://rhn.redhat.com/errata/RHSA-2016-0594.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00088.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00058.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00052.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184623.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177520.html
http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html