User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the DEMX chunk inside Adobe's RIFF-based Director file format. The code within the Shockwave 3d Asset.x32 module does not properly check a size value used as the size for a malloc. The given size will wrap, causing a small buffer to be allocated. This can lead to memory corruption which can be leveraged to execute arbitrary code under the context of the user running the browser.
