CVE-2017-17879 (imagemagick)
In ImageMagick 7.0.7-16 Q16 x86_64 2017-12-21, there is a heap-based buffer over-read in ReadOneMNGImage in coders/png.c, related to length calculation and caused by an off-by-one error.
Source: CVE-2017-17879 (imagemagick)