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Gentoo Linux Security Advisory                           GLSA 202101-37
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: VLC: Buffer overflow
     Date: January 29, 2021
     Bugs: #765040
       ID: 202101-37

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Synopsis
========

A buffer overflow in VLC might allow remote attacker(s) to execute
arbitrary code.

Background
==========

VLC is a cross-platform media player and streaming server.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-video/vlc             < 3.0.12.1               >= 3.0.12.1

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

VLC was found to have a buffer overflow when handling crafted MKV
files.

Impact
======

A remote attacker could entice a user to open a specially crafted MKV
file using VLC 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 VLC users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-video/vlc-3.0.12.1"

References
==========

[ 1 ] CVE-2020-26664
      https://nvd.nist.gov/vuln/detail/CVE-2020-26664

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

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

 https://security.gentoo.org/glsa/202101-37

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