[ GLSA 201201-11 ] Firewall Builder: Privilege escalation

[Sean Amoss <ackle () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 201201-11
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: Firewall Builder: Privilege escalation
     Date: January 23, 2012
     Bugs: #235809, #285861
       ID: 201201-11

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Synopsis
========

Insecure temporary file usage in Firewall Builder could allow attackers
to overwrite arbitrary files.

Background
==========

Firewall Builder is a GUI for easy management of multiple firewall
platforms.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-firewall/fwbuilder       < 3.0.7                    >= 3.0.7

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

Two vulnerabilities in Firewall Builder allow the iptables and
fwb_install scripts to use temporary files insecurely.

Impact
======

A local attacker could possibly overwrite arbitrary files with the
privileges of the user running Firewall Builder.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Firewall Builder users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-firewall/fwbuilder-3.0.7"

NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since March 09, 2010. It is likely that your system is
already no longer affected by this issue.

References
==========

[ 1 ] CVE-2008-4956
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-4956
[ 2 ] CVE-2009-4664
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4664

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

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

 http://security.gentoo.org/glsa/glsa-201201-11.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 2012 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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