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Gentoo Linux Security Advisory                           GLSA 202305-30
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                                           https://security.gentoo.org/
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 Severity: High
    Title: X.Org X server, XWayland: Multiple Vulnerabilities
     Date: May 30, 2023
     Bugs: #829208, #877459, #885825, #893438, #903547
       ID: 202305-30

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Synopsis
=======
Multiple vulnerabilities have been discovered in the Xorg Server and
XWayland, the worst of which can result in privilege escalation or
remote code execution.

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

Affected packages
================
Package               Vulnerable    Unaffected
--------------------  ------------  ------------
x11-base/xorg-server  < 21.1.8      >= 21.1.8
x11-base/xwayland     < 23.1.1      >= 23.1.1

Description
==========
Multiple vulnerabilities have been discovered in X.Org X server,
XWayland. Please review the CVE identifiers referenced below for
details.

Impact
=====
Please review the referenced CVE identifiers for details.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All X.Org X server users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-21.1.8"

All XWayland users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=x11-base/xwayland-23.1.1"

References
=========
[ 1 ] CVE-2021-4008
      https://nvd.nist.gov/vuln/detail/CVE-2021-4008
[ 2 ] CVE-2021-4009
      https://nvd.nist.gov/vuln/detail/CVE-2021-4009
[ 3 ] CVE-2021-4010
      https://nvd.nist.gov/vuln/detail/CVE-2021-4010
[ 4 ] CVE-2021-4011
      https://nvd.nist.gov/vuln/detail/CVE-2021-4011
[ 5 ] CVE-2022-3550
      https://nvd.nist.gov/vuln/detail/CVE-2022-3550
[ 6 ] CVE-2022-3551
      https://nvd.nist.gov/vuln/detail/CVE-2022-3551
[ 7 ] CVE-2022-3553
      https://nvd.nist.gov/vuln/detail/CVE-2022-3553
[ 8 ] CVE-2022-4283
      https://nvd.nist.gov/vuln/detail/CVE-2022-4283
[ 9 ] CVE-2022-46283
      https://nvd.nist.gov/vuln/detail/CVE-2022-46283
[ 10 ] CVE-2022-46340
      https://nvd.nist.gov/vuln/detail/CVE-2022-46340
[ 11 ] CVE-2022-46341
      https://nvd.nist.gov/vuln/detail/CVE-2022-46341
[ 12 ] CVE-2022-46342
      https://nvd.nist.gov/vuln/detail/CVE-2022-46342
[ 13 ] CVE-2022-46343
      https://nvd.nist.gov/vuln/detail/CVE-2022-46343
[ 14 ] CVE-2022-46344
      https://nvd.nist.gov/vuln/detail/CVE-2022-46344
[ 15 ] CVE-2023-0494
      https://nvd.nist.gov/vuln/detail/CVE-2023-0494
[ 16 ] CVE-2023-1393
      https://nvd.nist.gov/vuln/detail/CVE-2023-1393
[ 17 ] ZDI-CAN-19596

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

 https://security.gentoo.org/glsa/202305-30

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 2023 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/