Description
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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | — | — |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ffmpeg | 7:8.1.1-1 | — |
| Debian 13 | ffmpeg | 7:7.1.4-0+deb13u1 | — |
| Debian 12 | ffmpeg | 7:5.1.9-0+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ffmpeg | No fix yet | — |
| Ubuntu 25.10 | ffmpeg | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 24.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 22.04 LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1+esm16 | USN-8750-1 |
| Ubuntu Pro 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1+esm17 | USN-8750-1 |
| Ubuntu Pro 18.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 16.04 LTS | ffmpeg | No fix yet | — |
| Ubuntu Pro 14.04 LTS | libav | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.52.1 | SUSE-SU-2026:3542-1 |
| SLES 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.72.1 | SUSE-SU-2026:3529-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.72.1 | SUSE-SU-2026:3529-1 |
| SLE HPC 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.72.1 | SUSE-SU-2026:3529-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.8-2.1 | openSUSE-SU-2026:11360-1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.4-5.1 | openSUSE-SU-2026:11361-1 |
| openSUSE Tumbleweed | ffmpeg-8 | 8.1.2-2.1 | openSUSE-SU-2026:11347-1 |
| openSUSE Tumbleweed | ffmpeg-9 | 9.0.1-1.1 | openSUSE-SU-2026:11515-1 |
| openSUSE Leap 16.0 | ffmpeg-7 | 7.1.5-160000.1.1 | openSUSE-SU-2026:21877-1 |
Advisories 9
- openSUSE-SU-2026:21877-1 Security update for ffmpeg-7 SUSE / openSUSE Security Updates · Sep 25, 2026
- WID-SEC-2026-2015 ffmpeg: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 24, 2026
- USN-8750-1 ffmpeg vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- openSUSE-SU-2026:11515-1 ffmpeg-9-libavcodec-devel-9.0.1-1.1 on GA media SUSE / openSUSE Security Updates · Aug 16, 2026
- SUSE-SU-2026:3542-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Aug 11, 2026
- SUSE-SU-2026:3529-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Aug 8, 2026
- openSUSE-SU-2026:11360-1 ffmpeg-4-4.4.8-2.1 on GA media SUSE / openSUSE Security Updates · Jul 25, 2026
- openSUSE-SU-2026:11361-1 ffmpeg-7-7.1.4-5.1 on GA media SUSE / openSUSE Security Updates · Jul 25, 2026
- openSUSE-SU-2026:11347-1 ffmpeg-8-8.1.2-2.1 on GA media SUSE / openSUSE Security Updates · Jul 24, 2026