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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 security@gentoo.org 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


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