magick/attribute.c in ImageMagick 7.0.3-2 allows remote attackers to cause a denial of service (use-after-free) via a crafted file.
https://security.gentoo.org/glsa/201611-21
https://github.com/ImageMagick/ImageMagick/issues/281
https://github.com/ImageMagick/ImageMagick/commit/90406972f108c4da71f998601b06abdc2ac6f06e
http://www.securityfocus.com/bid/93271
http://www.openwall.com/lists/oss-security/2016/10/02/3