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Gentoo Linux Security Advisory                           GLSA 202310-15
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                                           https://security.gentoo.org/
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 Severity: High
    Title: USBView: root privilege escalation via insecure polkit settings
     Date: October 26, 2023
     Bugs: #831756
       ID: 202310-15

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Synopsis
========

A vulnerability has been discovered in usbview where certain users can
trigger a privilege escalation.

Background
==========

USBView is a tool to display the topology of devices on the USB bus.

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

Package            Vulnerable    Unaffected
-----------------  ------------  ------------
app-admin/usbview  < 2.2         >= 2.2

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

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

Impact
======

USBView allows some local users (e.g., ones logged in via SSH) to
execute arbitrary code as root because certain Polkit settings (e.g.,
allow_any=yes) for pkexec disable the authentication requirement. Code
execution can, for example, use the --gtk-module option.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All USBView users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-admin/usbview-2.2"

References
==========

[ 1 ] CVE-2022-23220
      https://nvd.nist.gov/vuln/detail/CVE-2022-23220

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

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

 https://security.gentoo.org/glsa/202310-15

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/