Gentoo Linux Security Advisory 201711-11 - A vulnerability was discovered in VDE which may allow local users to gain root privileges. Versions less than 2.3.2-r4 are affected.
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Gentoo Linux Security Advisory GLSA 201711-11
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https://security.gentoo.org/
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Severity: Normal
Title: VDE: Privilege escalation
Date: November 12, 2017
Bugs: #603382
ID: 201711-11
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Synopsis
========
A vulnerability was discovered in VDE which may allow local users to
gain root privileges.
Background
==========
VDE is an ethernet compliant virtual network that can be spawned over a
set of physical computer over the Internet.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 net-misc/vde < 2.3.2-r4 >= 2.3.2-r4
Description
===========
It was discovered that Gentooas default VDE installation suffered from
a privilege escalation vulnerability in the init script. This script
calls an unsafe 'chown' command which gives members from "qemu" group
root privileges.
Impact
======
A local attacker could escalate privileges to root.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All VDE users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/vde-2.3.2-r4"
References
==========
[ 1 ] CVE-2017-16638
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-16638
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201711-11
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 2017 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.
http://creativecommons.org/licenses/by-sa/2.5