Gentoo: 201310-20 acpid2: Privilege escalation
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in acpid2 may allow a local attacker to gain escalated privileges.
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Gentoo Linux Security Advisory                           GLSA 201310-20
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                                            http://security.gentoo.org/
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 Severity: High
    Title: acpid2: Privilege escalation
     Date: October 28, 2013
     Bugs: #434522
       ID: 201310-20

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Synopsis
========

A vulnerability in acpid2 may allow a local attacker to gain escalated
privileges.

Background
==========

acpid2 is a daemon for Advanced Configuration and Power Interface.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-power/acpid              < 2.0.17                  >= 2.0.17

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

acpid2 does not properly use the pidof program in powerbtn.sh.

Impact
======

A local attacker could gain escalated privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All acpid2 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-power/acpid-2.0.17"

References
==========

[ 1 ] CVE-2011-2777
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2777

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

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

 http://security.gentoo.org/glsa/glsa-201310-20.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 2013 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