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Gentoo Linux Security Advisory                           GLSA 201412-02
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                                            https://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
      https://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:

 https://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.

https://creativecommons.org/licenses/by-sa/2.5