CVE-2017-17913 (graphicsmagick)
In GraphicsMagick 1.4 snapshot-20171217 Q8, there is a stack-based buffer over-read in WriteWEBPImage in coders/webp.c, related to an incompatibility with libwebp versions, 0.5.0 and later, that use a different structure type.
Source: CVE-2017-17913 (graphicsmagick)