– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201711-11
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Severity: Normal
Title: VDE: Privilege escalation
Date: November 12, 2017
Bugs: #603382
ID: 201711-11
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
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
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 net-misc/vde < 2.3.2-r4 >= 2.3.2-r4
Description
===========
It was discovered that Gentoo’s 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—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2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=UJRi
—–END PGP SIGNATURE—–