tiffsplit in libtiff 4.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted file, related to changing td_nstrips in TIFF_STRIPCHOP mode.
https://security.gentoo.org/glsa/201701-16
http://www.securityfocus.com/bid/94271
http://www.openwall.com/lists/oss-security/2016/11/11/6
http://www.openwall.com/lists/oss-security/2016/11/09/20