[ GLSA 200404-05 ] ipsec-tools contains an X.509 certificates vulnerability

[Kurt Lieber]

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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=20
Bugs: #47013
ID: 200404-05

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Synopsis
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ipsec-tools contains a vulnerability that affects connections
authenticated with X.509 certificates.

Background
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=46rom 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 <=3D 0.2.4 >=3D 0.2.5

Description
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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
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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
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A workaround is not currently known for this issue. All users are
advised to upgrade to the latest version of the affected package.

Resolution
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ipsec-tools users should upgrade to version 0.2.5 or later:

# emerge sync

# emerge -pv ">=3Dnet-firewall/ipsec-tools-0.2.5"
# emerge ">=3Dnet-firewall/ipsec-tools-0.2.5"

Concerns?
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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
http://bugs.gentoo.org.

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