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Gentoo Linux Security Advisory                           GLSA 201611-07
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: polkit: Heap-corruption on duplicate IDs
     Date: November 15, 2016
     Bugs: #555666
       ID: 201611-07

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Synopsis
========

polkit is vulnerable to local privilege escalation.

Background
==========

polkit is a toolkit for managing policies relating to unprivileged
processes communicating with privileged processes.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-auth/polkit              < 0.113                    >= 0.113

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

A vulnerability was discovered in polkit's
polkit_backend_action_pool_init function due to duplicate action IDs in
action descriptions.

Impact
======

Local attackers are able to gain unauthorized privileges on the system.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All polkit users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.113"

References
==========

[ 1 ] CVE-2015-3255
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3255

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

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

 https://security.gentoo.org/glsa/201611-07

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 2016 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