Adobe Flash - LMZA Property Decoding Heap Corruption

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=790

Loading the attached image causes heap corruption due to LMZA property decoding. To reproduce the issue, load the attach file '6' using LoadImage.swf as follows:

LoadImage.swf?img=6

The issue sometimes takes multiple refreshes to crash


Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40089.zip