Provide references for CVE-2017-12640.
Where can I find more information about CVE-2017-12640?
References are available at: https://www.debian.org/security/2017/dsa-4040, https://usn.ubuntu.com/3681-1/, https://github.com/ImageMagick/ImageMagick/issues/542, http://www.securityfocus.com/bid/100155, https://www.debian.org/security/2017/dsa-4019, https://github.com/ImageMagick/ImageMagick/commit/307fa45d512641fcd105f0d57ca50c1437cd1b81.