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GLSA-201603-13 : Libreswan: Multiple Vulnerabilities

medium Nessus Plugin ID 89906

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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-201603-13 (Libreswan: Multiple Vulnerabilities)

 The pluto IKE daemon in Libreswan, when built with NSS, allows remote attackers to cause a Denial of Service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.
 Additionally, remote attackers could cause a Denial of Service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to ISAKMP_NEXT_SAK.
 Impact :

 Remote attackers could possibly cause Denial of Service.
 Workaround :

 There is no known workaround at this time.

Solution

All Libreswan users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/libreswan-3.15'

See Also

https://security.gentoo.org/glsa/201603-13

Plugin Details

Severity: Medium

ID: 89906

File Name: gentoo_GLSA-201603-13.nasl

Version: 2.2

Type: local

Published: 3/14/2016

Updated: 1/11/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

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

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

Patch Publication Date: 3/12/2016

Reference Information

CVE: CVE-2015-3204, CVE-2015-3240

GLSA: 201603-13