graphicsmagick:coder_PNG8_fuzzer: Heap-buffer-overflow in WriteOnePNGImage

Project: http://hg.code.sf.net/p/graphicsmagick/code Detailed Report: https://oss-fuzz.com/testcase?key=4899934996594688 Project: graphicsmagick Fuzzing Engine: honggfuzz Fuzz Target: coderPNG8fuzzer Job Type: honggfuzzasangraphicsmagick Platform Id: linux Crash Type: Heap-buffer-overflow READ 1...

UBUNTU-CVE-2019-19949

In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WritePNGImage of coders/png.c, related to Magickpngwriterawprofile and LocaleNCompare...