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Gentoo Linux Security Advisory 202101-22

Gentoo Linux Security Advisory 202101-22
Posted Jan 26, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202101-22 - A vulnerability in libvirt may allow root privilege escalation. Versions less than 6.7.0 are affected.

tags | advisory, root
systems | linux, gentoo
advisories | CVE-2020-14339
MD5 | b86d822c8605924db1e353e80d4a4fa1

Gentoo Linux Security Advisory 202101-22

Change Mirror Download
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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
security@gentoo.org 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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