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Gentoo Linux Security Advisory                           GLSA 201406-30
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                                            https://security.gentoo.org/
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 Severity: High
    Title: sudo: Privilege escalation
     Date: June 27, 2014
     Bugs: #503586
       ID: 201406-30

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Synopsis
=======
A vulnerability has been found in sudo allowing a local attacker to
gain elevated privileges.

Background
=========
sudo allows a system administrator to give users the ability to run
commands as other users. Access to commands may also be granted on a
range to hosts.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-admin/sudo               < 1.8.5                    >= 1.8.5 
                                                              < 1.6.9 

Description
==========
When the Sudo env_reset option is disabled (it is enabled by default),
certain environment variables are not blacklisted as expected.

Impact
=====
A local attacker, authorized to run commands using sudo, can use this
flaw to execute arbitrary code or escalate his privileges.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.5"

References
=========
[ 1 ] CVE-2014-0106
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-0106

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

 https://security.gentoo.org/glsa/201406-30

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/