- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202409-27
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: tmux: Null Pointer Dereference
     Date: September 28, 2024
     Bugs: #891783
       ID: 202409-27

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A vulnerability has been found in tmux which could result in application
crash.

Background
==========

tmux is a terminal multiplexer.

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

Package        Vulnerable    Unaffected
-------------  ------------  ------------
app-misc/tmux  < 3.4         >= 3.4

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

A null pointer dereference issue was discovered in function
window_pane_set_event in window.c in which allows attackers to cause
denial of service or other unspecified impacts.

Impact
======

Manipulating tmux window state could result in a null pointer
dereference.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All tmux users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-misc/tmux-3.4"

References
==========

[ 1 ] CVE-2022-47016
      https://nvd.nist.gov/vuln/detail/CVE-2022-47016

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

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

 https://security.gentoo.org/glsa/202409-27

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 2024 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