Home / mailings

PDF

[USN-7871-1] FFmpeg vulnerability

Posted on 17 November 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7871-1
November 16, 2025

ffmpeg vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 25.04

Summary:

FFmpeg could be made to crash if it opened a specially crafted
file.

Software Description:
- ffmpeg: Tools for transcoding, streaming and playing of multimedia files

Details:

It was discovered that FFmpeg incorrectly handled memory allocation in the
ALS audio decoder. If a user was tricked into loading a crafted media file,
a remote attacker could possibly use this issue to make FFmpeg crash,
resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
ffmpeg 7:7.1.1-1ubuntu4.1
libavcodec61 7:7.1.1-1ubuntu4.1
libavformat61 7:7.1.1-1ubuntu4.1

Ubuntu 25.04
ffmpeg 7:7.1.1-1ubuntu1.3
libavcodec61 7:7.1.1-1ubuntu1.3
libavformat61 7:7.1.1-1ubuntu1.3

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-7871-1
CVE-2025-7700

Package Information:
https://launchpad.net/ubuntu/+source/ffmpeg/7:7.1.1-1ubuntu4.1
https://launchpad.net/ubuntu/+source/ffmpeg/7:7.1.1-1ubuntu1.3

--===============7411309302815510061==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP