[gentoo-announce] [ GLSA 201603-13 ] Libreswan: Multiple Vulnerabilities

Fabricante: Gentoo
Fecha: 13/03/2016
Identificador: GLSA 201603-13
[gentoo-announce] [ GLSA 201603-13 ] Libreswan: Multiple Vulnerabilities
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201603-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Libreswan: Multiple Vulnerabilities Date: March 12, 2016 Bugs: #550974, #558692 ID: 201603-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in libreSwan possibly resulting in Denial of Service. Background ========== Libreswan is a free software implementation of the most widely supported and standarized VPN protocol based on ("IPsec") and the Internet Key Exchange ("IKE"). Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/libreswan < 3.15 >= 3.15 Description =========== 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. Resolution ========== All Libreswan users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/libreswan-3.15" References ========== [ 1 ] CVE-2015-3204 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3204 [ 2 ] CVE-2015-3240 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3240 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201603-13 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 2016 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