Joined: 12 May 2004
|Posted: Sun Mar 13, 2016 12:26 am Post subject: [ GLSA 201603-13 ] Libreswan
|Gentoo Linux Security Advisory
Title: Libreswan: Multiple Vulnerabilities (GLSA 201603-13)
Date: March 12, 2016
Bug(s): #550974, #558692
Multiple vulnerabilities have been found in libreSwan possibly
resulting in Denial of Service.
Libreswan is a free software implementation of the most widely supported
and standarized VPN protocol based on (“IPsec”) and the Internet Key
Vulnerable: < 3.15
Unaffected: >= 3.15
Architectures: All supported architectures
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.
Remote attackers could possibly cause Denial of Service.
There is no known workaround at this time.
All Libreswan users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/libreswan-3.15"