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To: gentoo-announce@g.o
From: Sean Amoss <ackle@g.o>
Subject: [ GLSA 201203-20 ] Logwatch: Arbitrary code execution
Date: Wed, 28 Mar 2012 06:53:26 -0400
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Gentoo Linux Security Advisory                           GLSA 201203-20
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                                            http://security.gentoo.org/
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 Severity: High
    Title: Logwatch: Arbitrary code execution
     Date: March 28, 2012
     Bugs: #356387
       ID: 201203-20

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Synopsis
========

A vulnerability in Logwatch might allow remote attackers to execute
arbitrary code.

Background
==========

Logwatch analyzes and reports on system logs.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-apps/logwatch            < 7.4.0                    >= 7.4.0

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

logwatch.pl does not properly sanitize log filenames against shell
metacharacters before passing them to the "system()" function.

Impact
======

A remote attacker could pass a specially crafted log filename to
Logwatch, possibly resulting in execution of arbitrary code with root
privileges or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Logwatch users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/logwatch-7.4.0"

References
==========

[ 1 ] CVE-2011-1018
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1018

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

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

 http://security.gentoo.org/glsa/glsa-201203-20.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@g.o 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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Updated Jun 25, 2012

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