Description
A vulnerability, which was classified as critical, has been found in libav up to 12.3. Affected by this issue is the function main of the file /avtools/avconv.c of the component DSS File Demuxer. The manipulation leads to double free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The bug was initially reported by the researcher to the wrong project. This vulnerability only affects products that are no longer supported by the maintainer.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libav | 12.0, 12.1, 12.2, 12.3 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | libav | No fix yet | — |
Advisories 1
- WID-SEC-2025-1728 libav: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 5, 2025
References
- VDB-318818 | libav DSS File Demuxer avconv.c main double free vdb-entry technical-description
- VDB-318818 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #621825 | libav avconv 13 && the newest master Double-free third-party-advisory
- https://trac.ffmpeg.org/ticket/11680 issue-tracking
- https://drive.google.com/file/d/1I4VVXGys156UdeSTgya_GGxLZxwuxUPw/view?usp=sharing exploit