Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=792

There is an overflow in the processing of raw 565 textures in ATF processing. 

To reproduce the issue, load the attach file '70' using LoadImage.swf as follows:

LoadImage.swf?img=70


Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/39826.zip