Memory leak in the IsOptionMember function in MagickCore/option.c in ImageMagick before 6.9.2-2, as used in ODR-PadEnc and other products, allows attackers to trigger memory consumption.
https://github.com/Opendigitalradio/ODR-PadEnc/issues/2
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=857426
http://www.debian.org/security/2017/dsa-3808
http://git.imagemagick.org/repos/ImageMagick/commit/6790815c75bdea0357df5564345847856e995d6b