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Gentoo Linux Security Advisory                           GLSA 202307-01
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                                           https://security.gentoo.org/
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 Severity: High
    Title: OpenSSH: Remote Code Execution
     Date: July 20, 2023
     Bugs: #892936, #905299, #910553
       ID: 202307-01

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Synopsis
========

Multiple vulnerbilities have been discovered in OpenSSH, the worst of
which could result in remote code execution.

Background
==========

OpenSSH is a free application suite consisting of server and clients
that replace tools like telnet, rlogin, rcp and ftp with more secure
versions offering additional functionality.

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

Package           Vulnerable    Unaffected
----------------  ------------  ------------
net-misc/openssh  < 9.3_p2      >= 9.3_p2

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

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

Impact
======

Please review the CVE identifiers referenced below for details.

Workaround
==========

CVE-2023-38408 can be worked around by avoiding connecting to untrusted
servers with an SSH agent.

Resolution
==========

All OpenSSH users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/openssh-9.3_p2"

References
==========

[ 1 ] CVE-2023-25136
      https://nvd.nist.gov/vuln/detail/CVE-2023-25136
[ 2 ] CVE-2023-28531
      https://nvd.nist.gov/vuln/detail/CVE-2023-28531
[ 3 ] CVE-2023-38408
      https://nvd.nist.gov/vuln/detail/CVE-2023-38408

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

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

 https://security.gentoo.org/glsa/202307-01

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 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