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Gentoo Linux Security Advisory                           GLSA 201710-04
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                                           https://security.gentoo.org/
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 Severity: High
    Title: sudo: Privilege escalation
     Date: October 08, 2017
     Bugs: #620482
       ID: 201710-04

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Synopsis
========

A vulnerability in sudo allows local users to gain root privileges.

Background
==========

sudo (su adoa) allows a system administrator to delegate authority to
give certain users (or groups of users) the ability to run some (or
all) commands as root or another user while providing an audit trail of
the commands and their arguments.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-admin/sudo             < 1.8.20_p2              >= 1.8.20_p2 

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

The fix present in app-admin/sudo-1.8.20_p1 (GLSA 201705-15) was
incomplete as it did not address the problem of a command with a
newline in the name.

Impact
======

A local attacker could execute arbitrary code with root 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-1.8.20_p2"

References
==========

[ 1 ] CVE-2017-1000368
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-1000368
[ 2 ] GLSA 201705-15
      https://security.gentoo.org/glsa/201705-15

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

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

 https://security.gentoo.org/glsa/201710-04

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 2017 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