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Gentoo Linux Security Advisory GLSA 200705-09 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: IPsec-Tools: Denial of Service |
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Date: May 08, 2007 |
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Bugs: #173219 |
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ID: 200705-09 |
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Synopsis |
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======== |
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|
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IPsec-Tools contains a vulnerability that allows a remote attacker to |
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crash the IPsec tunnel. |
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Background |
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========== |
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|
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IPsec-Tools is a port of KAME's implementation of the IPsec utilities. |
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It contains a collection of network monitoring tools, including racoon, |
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ping, and ping6. |
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|
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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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1 net-firewall/ipsec-tools < 0.6.7 >= 0.6.7 |
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|
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Description |
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=========== |
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|
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The isakmp_info_recv() function in src/racoon/isakmp_inf.c does not |
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always check that DELETE (ISAKMP_NPTYPE_D) and NOTIFY (ISAKMP_NPTYPE_N) |
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packets are encrypted. |
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|
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Impact |
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====== |
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|
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A remote attacker could send a specially crafted IPsec message to one |
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of the two peers during the beginning of phase 1, resulting in the |
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termination of the IPsec exchange. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All IPsec-Tools users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-firewall/ipsec-tools-0.6.7" |
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|
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References |
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========== |
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[ 1 ] CVE-2007-1841 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1841 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200705-09.xml |
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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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|
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License |
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======= |
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Copyright 2007 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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