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[gentoo-announce] [ GLSA 201412-02 ] nfs-utils: Information disclosure

Posted on 09 December 2014
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201412-02
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http://security.gentoo.org/
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Severity: Normal
Title: nfs-utils: Information disclosure
Date: December 08, 2014
Bugs: #464636
ID: 201412-02

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Synopsis
========
A vulnerability in nfs-utils might allow remote attackers to gain
access to restricted information.

Background
==========
nfs-utils contains the client and daemon implementations for the NFS
protocol.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-fs/nfs-utils < 1.2.8 >= 1.2.8

Description
===========
rpc.gssd in nfs-utils is vulnerable to DNS spoofing due to it depending
on PTR resolution for GSSAPI authentication, allowing for data to be
submitted to a malicious server without the knowledge of the user.

Impact
======
A remote attacker may be able to obtain sensitive information.

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

Resolution
==========
All nfs-utils users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/nfs-utils-1.2.8"

References
==========
[ 1 ] CVE-2013-1923
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1923

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

http://security.gentoo.org/glsa/glsa-201412-02.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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