A ffmpeg security update has been released for Arch Linux.

ASA-202007-4: ffmpeg: arbitrary code execution

Arch Linux Security Advisory ASA-202007-4
========================================
Severity: High
Date : 2020-07-31
CVE-ID : CVE-2020-13904
Package : ffmpeg
Type : arbitrary code execution
Remote : Yes
Link :   https://security.archlinux.org/AVG-1180

Summary
======
The package ffmpeg before version 2:4.3.1-1 is vulnerable to arbitrary
code execution.

Resolution
=========
Upgrade to 2:4.3.1-1.

# pacman -Syu "ffmpeg>=2:4.3.1-1"

The problem has been fixed upstream in version 4.3.1.

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

Description
==========
A use-after-free via a crafted EXTINF duration in an m3u8 file has been
found in ffmpeg