Integer overflow in the writeBufferToSeparateStrips function in tiffcrop.c in LibTIFF before 4.0.7 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted tif file.
https://security.gentoo.org/glsa/201701-16
https://bugzilla.redhat.com/show_bug.cgi?id=1397726
http://www.securityfocus.com/bid/94424
http://www.openwall.com/lists/oss-security/2016/11/22/1
http://www.openwall.com/lists/oss-security/2016/11/21/1
http://www.openwall.com/lists/oss-security/2016/11/11/14