tif_getimage.c in LibTIFF 4.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) via the SamplesPerPixel tag in a TIFF image.
https://security.gentoo.org/glsa/201701-16
http://www.ubuntu.com/usn/USN-2939-1
http://www.securitytracker.com/id/1035508
http://www.securityfocus.com/bid/79728
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/2015/12/24/4
http://www.openwall.com/lists/oss-security/2015/12/24/2
http://www.debian.org/security/2016/dsa-3467