An integer overflow in the processing of loaded 2D images leads to a write-what-where vulnerability and an out-of-bounds read vulnerability, allowing an attacker to leak sensitive information or achieve code execution in the context of the Blender process when a specially crafted image file is loaded. This flaw affects Blender versions prior to 2.83.19, 2.93.8 and 3.1.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://developer.blender.org/T94629 | issue tracking patch vendor advisory |
| https://lists.debian.org/debian-lts-announce/2022/06/msg00021.html | third party advisory mailing list |
| https://www.debian.org/security/2022/dsa-5176 | third party advisory vendor advisory |