The NeXTDecode function in tif_next.c in LibTIFF allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted TIFF image, as demonstrated by libtiff5.tif.
https://security.gentoo.org/glsa/201701-16
https://github.com/vadz/libtiff/commit/b18012dae552f85dcc5c57d3bf4e997a15b1cc1c
http://www.ubuntu.com/usn/USN-2939-1
http://www.securityfocus.com/bid/81696
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.openwall.com/lists/oss-security/2016/01/24/8
http://www.openwall.com/lists/oss-security/2016/01/24/4
http://www.debian.org/security/2016/dsa-3467
http://rhn.redhat.com/errata/RHSA-2016-1547.html