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Gentoo Linux Security Advisory                           GLSA 202402-20
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Thunar: Arbitrary Code Execution
     Date: February 18, 2024
     Bugs: #789396
       ID: 202402-20

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Synopsis
========

A vulnerability has been discovered in Thunar which may lead to
arbitrary code execution

Background
==========

Thunar is a modern file manager for the Xfce Desktop Environment. Thunar
has been designed from the ground up to be fast and easy to use. Its
user interface is clean and intuitive and does not include any confusing
or useless options by default. Thunar starts up quickly and navigating
through files and folders is fast and responsive.

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

Package           Vulnerable    Unaffected
----------------  ------------  ------------
xfce-base/thunar  < 4.17.3      >= 4.17.3

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

A vulnerability has been discovered in Thunar. Please review the CVE
identifier referenced below for details.

Impact
======

When called with a regular file as command line argument, Thunar
would delegate to some other program without user confirmation
based on the file type. This could be exploited to trigger code
execution in a chain of vulnerabilities.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Thunar users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=xfce-base/thunar-4.17.3"

References
==========

[ 1 ] CVE-2021-32563
      https://nvd.nist.gov/vuln/detail/CVE-2021-32563

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

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

 https://security.gentoo.org/glsa/202402-20

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