In ImageMagick 7.0.6-2, a memory leak vulnerability was found in the function ReadOneJNGImage in coders/png.c, which allows attackers to cause a denial of service. Upstream issue: https://github.com/ImageMagick/ImageMagick/issues/602 Upstream patch: https://github.com/ImageMagick/ImageMagick/commit/4d0ac66c9778faebd2d1fac7140462b043626458