Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a large width field in a BMP image.
packetstormsecurity.com/files/135080/libtiff-4.0.6-Heap-Overflow.html
rhn.redhat.com/errata/RHSA-2016-1546.html
rhn.redhat.com/errata/RHSA-2016-1547.html
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
www.securityfocus.com/archive/1/537208/100/0/threaded
security.gentoo.org/glsa/201701-16