GLSA 200909-05: Openswan: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Openswan: Denial of Service
Date:	09/09/2009
Bugs:	#264346, #275233
ID:	200909-05

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	Architecture(s)
net-misc/openswan	< 2.4.15	>= 2.4.15	All supported architectures

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

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.