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GLSA-200909-05 : Openswan: Denial of Service

medium Nessus Plugin ID 40913

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.

Solution

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

See Also

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

Plugin Details

Severity: Medium

ID: 40913

File Name: gentoo_GLSA-200909-05.nasl

Version: 1.13

Type: local

Published: 9/10/2009

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:openswan

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/9/2009

Reference Information

CVE: CVE-2009-0790, CVE-2009-2185

BID: 34296, 35452

CWE: 20

GLSA: 200909-05