Adobe Flash - Image Decoding Out-of-Bounds Read

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1215

The attached png file causes an out-of-bounds read when being decoded by flash. To reproduce the issue, put LoadImage.swf and read1.png on a server, and visit:

http://127.0.0.1/LoadImage.swf=read1.png


Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/42248.zip