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To: gentoo-announce@g.o
From: Tim Sammut <underling@g.o>
Subject: [ GLSA 201202-02 ] Quagga: Multiple vulnerabilities
Date: Tue, 21 Feb 2012 10:45:07 -0800
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Gentoo Linux Security Advisory                           GLSA 201202-02
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                                            http://security.gentoo.org/
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 Severity: High
    Title: Quagga: Multiple vulnerabilities
     Date: February 21, 2012
     Bugs: #334303, #359903, #384651
       ID: 201202-02

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Synopsis
========

Multiple vulnerabilities were found in Quagga, the worst of which
leading to remote execution of arbitrary code.

Background
==========

Quagga is a free routing daemon replacing Zebra supporting RIP, OSPF
and BGP.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/quagga             < 0.99.20                >= 0.99.20

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

Multiple vulnerabilities have been discovered in Quagga. Please review
the CVE identifiers referenced below for details.

Impact
======

A BGP peer could send a Route-Refresh message with specially-crafted
ORF record, which can cause Quagga's bgpd to crash or possibly execute
arbitrary code with the privileges of the user running Quagga's bgpd; a
BGP update AS path request with unknown AS type, or malformed
AS-Pathlimit or Extended-Community attributes could lead to Denial of
Service (daemon crash), an error in bgpd when handling AS_PATH
attributes within UPDATE messages can
be exploited to cause a heap-based buffer overflow resulting in a crash
of the
daemon and disruption of IPv4 routing, two errors in ospf6d and ospfd
can each be exploited to crash the daemon and disrupt IP routing.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Quagga users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/quagga-0.99.20 "

References
==========

[ 1 ] CVE-2010-1674
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1674
[ 2 ] CVE-2010-1675
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1675
[ 3 ] CVE-2010-2948
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2948
[ 4 ] CVE-2010-2949
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2949
[ 5 ] CVE-2011-3323
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3323
[ 6 ] CVE-2011-3324
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3324
[ 7 ] CVE-2011-3325
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3325
[ 8 ] CVE-2011-3326
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3326
[ 9 ] CVE-2011-3327
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3327

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

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

 http://security.gentoo.org/glsa/glsa-201202-02.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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