ImageMagick 7.0.7-2 has a memory leak in ReadOneJNGImage in coders/png.c. An attacker can use this to crash the application. Upstream issue: https://github.com/ImageMagick/ImageMagick/issues/760 Upstream patch: https://github.com/ImageMagick/ImageMagick/commit/698c09d05a749664288281012f319cd51da664ee