[ GLSA 202101-22 ] libvirt: Unintended access to /dev/mapper/control

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Gentoo Linux Security Advisory                           GLSA 202101-22
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                                           https://security.gentoo.org/
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 Severity: High
    Title: libvirt: Unintended access to /dev/mapper/control
     Date: January 26, 2021
     Bugs: #739948
       ID: 202101-22

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Synopsis
========

A vulnerability in libvirt may allow root privilege escalation.

Background
==========

libvirt is a C toolkit for manipulating virtual machines.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-emulation/libvirt        < 6.7.0                    >= 6.7.0

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

A file descriptor for /dev/mapper/control was insufficiently protected.

Impact
======

A local attacker may be able to escalate to root privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libvirt users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-emulation/libvirt-6.7.0"

References
==========

[ 1 ] CVE-2020-14339
      https://nvd.nist.gov/vuln/detail/CVE-2020-14339

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

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

 https://security.gentoo.org/glsa/202101-22

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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2021 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

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