GLSA-200909-05 : Openswan: Denial of Service

This script is Copyright (C) 2009-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200909-05
(Openswan: Denial of Service)

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.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200909-05.xml

Solution :

All Openswan users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/openswan-2.4.15'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 40913 (gentoo_GLSA-200909-05.nasl)

Bugtraq ID: 34296
35452

CVE ID: CVE-2009-0790
CVE-2009-2185