LibTIFF 4.0.7 has a "shift exponent too large for 64-bit type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image.Referenceshttps://blogs.gentoo.org/ago/2017/04/01/libtiff-multiple-ubsan-crasheshttp://www.debian.org/security/2017/dsa-3844http://www.securityfocus.com/bid/97511https://security.gentoo.org/glsa/201709-27https://usn.ubuntu.com/3602-1/
