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[ GLSA 200905-03 ] IPSec Tools: Denial of Service
From: Alex Legler <a3li () gentoo org>
Date: Sun, 24 May 2009 15:20:38 +0200

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Gentoo Linux Security Advisory                           GLSA 200905-03
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: IPSec Tools: Denial of Service
      Date: May 24, 2009
      Bugs: #267135
        ID: 200905-03

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Synopsis
========

Multiple errors in the IPSec Tools racoon daemon might allow remote
attackers to cause a Denial of Service.

Background
==========

The IPSec Tools are a port of KAME's IPsec utilities to the Linux-2.6
IPsec implementation. They include racoon, an Internet Key Exchange
daemon for automatically keying IPsec connections.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  net-firewall/ipsec-tools       < 0.7.2                   >= 0.7.2

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

The following vulnerabilities have been found in the racoon daemon as
shipped with IPSec Tools:

* Neil Kettle reported that racoon/isakmp_frag.c is prone to a
  null-pointer dereference (CVE-2009-1574).

* Multiple memory leaks exist in (1) the eay_check_x509sign()
  function in racoon/crypto_openssl.c and (2) racoon/nattraversal.c
  (CVE-2009-1632).

Impact
======

A remote attacker could send specially crafted fragmented ISAKMP
packets without a payload or exploit vectors related to X.509
certificate authentication and NAT traversal, possibly resulting in a
crash of the racoon daemon.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All IPSec Tools users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-firewall/ipsec-tools-0.7.2"

References
==========

  [ 1 ] CVE-2009-1574
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1574
  [ 2 ] CVE-2009-1632
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1632

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

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

  http://security.gentoo.org/glsa/glsa-200905-03.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
http://bugs.gentoo.org.

License
=======

Copyright 2009 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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