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