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Gentoo Linux Security Advisory GLSA 200404-05
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http://security.gentoo.org
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Severity: High
Title: ipsec-tools contains an X.509 certificates vulnerability.
Date: April 07, 2004
Bugs: #47013
ID: 200404-05
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Synopsis
========
ipsec-tools contains a vulnerability that affects connections
authenticated with X.509 certificates.
Background
==========
From http://ipsec-tools.sourceforge.net/ :
"IPsec-Tools is a port of KAME's IPsec utilities to the Linux-2.6 IPsec
implementation."
Affected packages
=================
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Package / Vulnerable / Unaffected
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net-firewall/ipsec-tools <= 0.2.4 >= 0.2.5
Description
===========
racoon (a utility in the ipsec-tools package) does not verify digital
signatures on Phase1 packets. This means that anybody holding the
correct X.509 certificate would be able to establish a connection, even
if they did not have the corresponding private key.
Impact
======
Since digital signatures are not verified by the racoon tool, an
attacker may be able to connect to the VPN gateway and/or execute a
man-in-the-middle attack.
Workaround
==========
A workaround is not currently known for this issue. All users are
advised to upgrade to the latest version of the affected package.
Resolution
==========
ipsec-tools users should upgrade to version 0.2.5 or later:
# emerge sync
# emerge -pv ">=net-firewall/ipsec-tools-0.2.5"
# emerge ">=net-firewall/ipsec-tools-0.2.5"
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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.
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