The IsPixelGray function in MagickCore/pixel-accessor.h in ImageMagick 7.0.3-8 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted image file.
lists.opensuse.org/opensuse-updates/2016-12/msg00040.html
www.debian.org/security/2016/dsa-3726
www.openwall.com/lists/oss-security/2016/11/23/1
www.openwall.com/lists/oss-security/2016/12/01/4
www.openwall.com/lists/oss-security/2016/12/02/12
www.securityfocus.com/bid/94492
blogs.gentoo.org/ago/2016/11/19/imagemagick-heap-based-buffer-overflow-in-ispixelgray-pixel-accessor-h
bugzilla.redhat.com/show_bug.cgi?id=1398198
github.com/ImageMagick/ImageMagick/commit/ce98a7acbcfca7f0a178f4b1e7b957e419e0cc99