In ImageMagick 7.0.6-3, 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/618 Upstream patch: https://github.com/ImageMagick/ImageMagick/commit/7287f50888c26b133ee173816332fcaec4e8cb62