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Gentoo Linux Security Advisory                           GLSA 202105-24
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: FFmpeg: Multiple vulnerabilities
      Date: May 26, 2021
      Bugs: #763315, #781146
        ID: 202105-24

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Synopsis
========

Multiple vulnerabilities have been found in FFmpeg, the worst of which
could result in the arbitrary execution of code.

Background
==========

FFmpeg is a complete, cross-platform solution to record, convert and
stream audio and video.

Affected packages
=================

     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   1  media-video/ffmpeg            < 4.4                       >= 4.4

Description
===========

Multiple vulnerabilities have been discovered in FFmpeg. Please review
the CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user to open a specially crafted media
file using FFmpeg, possibly resulting in execution of arbitrary code
with the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All FFmpeg users should upgrade to the latest version:

   # emerge --sync
   # emerge --ask --oneshot --verbose ">=media-video/ffmpeg-4.4"

References
==========

[ 1 ] CVE-2020-35964
       https://nvd.nist.gov/vuln/detail/CVE-2020-35964
[ 2 ] CVE-2020-35965
       https://nvd.nist.gov/vuln/detail/CVE-2020-35965
[ 3 ] CVE-2021-30123
       https://nvd.nist.gov/vuln/detail/CVE-2021-30123

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202105-24

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5