An exploitable integer overflow exists in the IRIS loading functionality of the Blender open-source 3d creation suite version 2.78c. A specially crafted '.iris' file can cause an integer overflow resulting in a buffer overflow which can allow for code execution under the context of the application. An attacker can convince a user to use the file as an asset via the sequencer in order to trigger this vulnerability.
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://lists.debian.org/debian-lts-announce/2018/08/msg00011.html | third party advisory mailing list |
| https://www.debian.org/security/2018/dsa-4248 | third party advisory vendor advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0408 | third party advisory exploit |