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