A ffmpeg security update has been released for Arch Linux.

ASA-202103-7: ffmpeg: arbitrary code execution

Arch Linux Security Advisory ASA-202103-7
========================================
Severity: Medium
Date : 2021-03-13
CVE-ID : CVE-2020-35964
Package : ffmpeg
Type : arbitrary code execution
Remote : No
Link :   https://security.archlinux.org/AVG-1649

Summary
======
The package ffmpeg before version 2:4.3.2-1 is vulnerable to arbitrary
code execution.

Resolution
=========
Upgrade to 2:4.3.2-1.

# pacman -Syu "ffmpeg>=2:4.3.2-1"

The problem has been fixed upstream in version 4.3.2.

Workaround
=========
None.

Description
==========
track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-
bounds write because of incorrect extradata packing. The issue is fixed
in FFmpeg version 4.3.2.

Impact
=====
An attacker might be able to execute arbitrary code via a crafted media
file.

References
=========
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id&622
  https://github.com/FFmpeg/FFmpeg/commit/4f0bdff292391cdb96b79b08c56533029166bdc8
  https://security.archlinux.org/CVE-2020-35964