[ GLSA 200909-05 ] Openswan: Denial of Service

[Alex Legler <a3li () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200909-05
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Openswan: Denial of Service
      Date: September 09, 2009
      Bugs: #264346, #275233
        ID: 200909-05

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Synopsis
========

Multiple vulnerabilities in the pluto IKE daemon of Openswan might
allow remote attackers to cause a Denial of Service.

Background
==========

Openswan is an implementation of IPsec for Linux.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  net-misc/openswan      < 2.4.15                         >= 2.4.15

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

Multiple vulnerabilities have been discovered in Openswan:

* Gerd v. Egidy reported a NULL pointer dereference in the Dead Peer
  Detection of the pluto IKE daemon as included in Openswan
  (CVE-2009-0790).

* The Orange Labs vulnerability research team discovered multiple
  vulnerabilities in the ASN.1 parser (CVE-2009-2185).

Impact
======

A remote attacker could exploit these vulnerabilities by sending
specially crafted R_U_THERE or R_U_THERE_ACK packets, or a specially
crafted X.509 certificate containing a malicious Relative Distinguished
Name (RDN), UTCTIME string or GENERALIZEDTIME string to cause a Denial
of Service of the pluto IKE daemon.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Openswan users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose =net-misc/openswan-2.4.15

References
==========

  [ 1 ] CVE-2009-0790
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0790
  [ 2 ] CVE-2009-2185
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2185

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

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

  http://security.gentoo.org/glsa/glsa-200909-05.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 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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