USN-8750-1: FFmpeg vulnerabilities
Ubuntu USN-8750-1 fixes multiple FFmpeg memory-handling flaws that allow denial of service via crafted files.
18
CVE-2026-12706
- CVSS 3.1
- 6.5 medium
- EPSS
- <1%p16
- Published
- ·
- Modified
Description · NVD
A use-after-free vulnerability was found in FFmpeg's RASC video decoder. The decode_move() function initializes a read pointer into a decompressed buffer, but a subsequent reallocation of that same buffer during move-table processing leaves the pointer dangling. An attacker could exploit this by providing a specially crafted AVI file containing a malicious RASC video stream. When a user opens or plays the file, the decoder reads from freed heap memory, which could lead to a denial of service (crash).
- Weakness
- CWE-416
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H