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[gentoo-announce] [ GLSA 201412-41 ] OpenVPN: Denial of Service

Posted on 26 December 2014
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201412-41
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http://security.gentoo.org/
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Severity: Normal
Title: OpenVPN: Denial of Service
Date: December 26, 2014
Bugs: #531308
ID: 201412-41

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Synopsis
========
A vulnerability in OpenVPN could lead to Denial of Service.

Background
==========
OpenVPN is a multi-platform, full-featured SSL VPN solution.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/openvpn < 2.3.6 >= 2.3.6

Description
===========
OpenVPN does not properly handle control channel packets that are too
small.

Impact
======
A remote authenticated attacker could send a specially crafted control
channel packet, possibly resulting in a Denial of Service condition.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All OpenVPN users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/openvpn-2.3.6"

References
==========
[ 1 ] CVE-2014-8104
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8104

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

http://security.gentoo.org/glsa/glsa-201412-41.xml

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 2014 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


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