Memory leak in the IsOptionMember function in MagickCore/option.c in ImageMagick allows attackers to trigger memory consumption. References: https://github.com/Opendigitalradio/ODR-PadEnc/issues/2 Upstream patch: http://git.imagemagick.org/repos/ImageMagick/commit/6790815c75bdea0357df5564345847856e995d6b