In ImageMagick 7.0.6-3, a memory leak vulnerability was found in the function ReadOneMNGImage in coders/png.c, which allows attackers to cause a denial of service. Upstream issue: https://github.com/ImageMagick/ImageMagick/issues/619 Upstream patch: https://github.com/ImageMagick/ImageMagick/commit/64e246252dff5bb16258adbc096da9bdc910bcd3