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Gentoo Linux Security Advisory                           GLSA 200506-22
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: sudo: Arbitrary command execution
      Date: June 23, 2005
      Bugs: #96618
        ID: 200506-22

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Synopsis
=======
A vulnerability in sudo may allow local users to elevate privileges.

Background
=========
sudo allows a system administrator to give users the ability to run
commands as other users.

Affected packages
================
    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  app-admin/sudo     < 1.6.8_p9                         >= 1.6.8_p9

Description
==========
The sudoers file is used to define the actions sudo users are permitted
to perform. Charles Morris discovered that a specific layout of the
sudoers file could cause the results of an internal check to be
clobbered, leaving sudo vulnerable to a race condition.

Impact
=====
Successful exploitation would permit a local sudo user to execute
arbitrary commands as another user.

Workaround
=========
Reorder the sudoers file using the visudo utility to ensure the 'ALL'
pseudo-command precedes other command definitions.

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

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.6.8_p9"

References
=========
  [ 1 ] Sudo Announcement
        
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200506-22

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 2005 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/2.0/