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Gentoo Linux Security Advisory                           GLSA 202012-01
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: X.Org X Server: Multiple vulnerabilities
      Date: December 07, 2020
      Bugs: #734976, #757882
        ID: 202012-01

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Synopsis
========

Multiple vulnerabilities have been found in X.org X Server, the worst
of which could lead to privilege escalation.

Background
==========

The X Window System is a graphical windowing system based on a
client/server model.

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

     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   1  x11-base/xorg-server        < 1.20.10                 >= 1.20.10

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

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

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

A local attacker could escalate privileges.

Resolution
==========

All X.org X Server users should upgrade to the latest version:

   # emerge --sync
   # emerge --ask --oneshot --verbose ">=11-base/xorg-server-1.20.10"

References
==========

[  1 ] CVE-2020-14345
        https://nvd.nist.gov/vuln/detail/CVE-2020-14345
[  2 ] CVE-2020-14346
        https://nvd.nist.gov/vuln/detail/CVE-2020-14346
[  3 ] CVE-2020-14347
        https://nvd.nist.gov/vuln/detail/CVE-2020-14347
[  4 ] CVE-2020-14360
        https://nvd.nist.gov/vuln/detail/CVE-2020-14360
[  5 ] CVE-2020-14361
        https://nvd.nist.gov/vuln/detail/CVE-2020-14361
[  6 ] CVE-2020-14362
        https://nvd.nist.gov/vuln/detail/CVE-2020-14362
[  7 ] CVE-2020-25712
        https://nvd.nist.gov/vuln/detail/CVE-2020-25712
[  8 ] Upstream advisory (2020-07-31)
        https://lists.x.org/archives/xorg-announce/2020-July/003051.html
[  9 ] Upstream advisory (2020-08-25)
        https://lists.x.org/archives/xorg-announce/2020-August/003058.html
[ 10 ] Upstream advisory (2020-12-01)
        https://lists.x.org/archives/xorg-announce/2020-December/003066.html

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

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

  https://security.gentoo.org/glsa/202012-01

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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 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