Description
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
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 | 7:4.3-2 | — |
| Debian 13 | ffmpeg | 7:4.3-2 | — |
| Debian 12 | ffmpeg | 7:4.3-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1+esm2 | USN-6430-1 |
| Ubuntu Pro 18.04 LTS | ffmpeg | 7:3.4.11-0ubuntu0.1+esm2 | USN-6430-1 |
| Ubuntu Pro 16.04 LTS | ffmpeg | 7:2.8.17-0ubuntu0.1+esm6 | USN-6430-1 |
Advisories 2
- USN-6430-1 ffmpeg vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- WID-SEC-2022-0210 ffmpeg: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 19, 2025