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Gentoo Linux Security Advisory                           GLSA 201406-01
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                                            http://security.gentoo.org/
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 Severity: High
    Title: D-Bus, GLib: Privilege escalation
     Date: June 01, 2014
     Bugs: #436028
       ID: 201406-01

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Synopsis
========

A vulnerability has been found in D-Bus which allows local attackers to
gain escalated privileges.

Background
==========

D-Bus is a daemon providing a framework for applications to communicate
with one another. GLib is a library providing a number of GNOME's core
objects and functions.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-apps/dbus                < 1.6.8                    >= 1.6.8
  2  dev-libs/glib              < 2.32.4-r1              >= 2.32.4-r1
    -------------------------------------------------------------------
     2 affected packages

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

When libdbus is used in a setuid program, a user can gain escalated
privileges by leveraging the DBUS_SYSTEM_BUS_ADDRESS variable. GLib can
be used in a setuid context with D-Bus, and so can trigger this
vulnerability. Please review the CVE identifier below for more details.

Impact
======

A local attacker could gain escalated privileges and execute arbitrary
code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All D-Bus users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.6.8"

All GLib users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/glib-2.32.4-r1"

References
==========

[ 1 ] CVE-2012-3524
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3524

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

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

 http://security.gentoo.org/glsa/glsa-201406-01.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 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.

http://creativecommons.org/licenses/by-sa/2.5


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