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[gentoo-announce] [ GLSA 200909-05 ] Openswan: Denial of Service

Posted on 09 September 2009
Gentoo-announce

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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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