Gentoo: 201209-22 libgssglue: Privilege escalation
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in libgssglue may allow a local attacker to gain escalated privileges.
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Gentoo Linux Security Advisory                           GLSA 201209-22
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                                            http://security.gentoo.org/
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 Severity: High
    Title: libgssglue: Privilege escalation
     Date: September 28, 2012
     Bugs: #385321
       ID: 201209-22

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Synopsis
========

A vulnerability in libgssglue may allow a local attacker to gain
escalated privileges.

Background
==========

libgssglue exports a GSSAPI interface which calls other random GSSAPI
libraries.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-libs/libgssglue           < 0.4                       >= 0.4

Description
===========

libgssglue does not securely use getenv() when loading a library for a
setuid application.

Impact
======

A local attacker could gain escalated privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libgssglue users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-libs/libgssglue-0.4"

References
==========

[ 1 ] CVE-2011-2709
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2709

Availability
============

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

 http://security.gentoo.org/glsa/glsa-201209-22.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 2012 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