Provide references for CVE-2018-16640.
Where can I find more information about CVE-2018-16640?
References are available at: https://github.com/ImageMagick/ImageMagick/issues/1201, https://github.com/ImageMagick/ImageMagick/commit/76efa969342568841ecf320b5a041685a6d24e0b, https://usn.ubuntu.com/3785-1/.