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CVE-2017-12937

Description

The ReadSUNImage function in coders/sun.c in GraphicsMagick 1.3.26 has a colormap heap-based buffer over-read.

POC

Reference

- https://blogs.gentoo.org/ago/2017/08/05/graphicsmagick-heap-based-buffer-overflow-in-readsunimage-sun-c/

Github

- https://github.com/mudongliang/LinuxFlaw

- https://github.com/oneoy/cve-