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Gentoo Linux Security Advisory GLSA 200404-17 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: ipsec-tools and iputils contain a remote DoS vulnerability |
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Date: April 24, 2004 |
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Bugs: #48847 |
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ID: 200404-17 |
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Synopsis |
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======== |
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|
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racoon, which is included in the ipsec-tools and iputils packages in |
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Portage, does not check the length of ISAKMP headers. Attackers may be |
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able to craft an ISAKMP header of sufficient length to consume all |
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available system resoources, causing a Denial of Service. |
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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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iputils is 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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net-firewall/ipsec-tools < 0.3.1 >= 0.3.1 |
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net-misc/iputils == 021109-r1 == 021109-r3 |
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|
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Description |
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=========== |
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|
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When racoon receives an ISAKMP header, it allocates memory based on the |
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length of the header field. Thus, an attacker may be able to cause a |
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Denial of Services by creating a header that is large enough to consume |
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all available system resources. |
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|
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Impact |
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====== |
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|
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This vulnerability may allow an attacker to remotely cause a Denial of |
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Service. |
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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-0.3.1" |
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# emerge ">=net-firewall/ipsec-tools-0.3.1" |
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iputils users should upgrade to version 021109-r3 or later: |
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# emerge sync |
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# emerge -pv ">=net-misc/iputils-021109-r3" |
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# emerge ">=net-misc/iputils-021109-r3" |
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References |
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========== |
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[ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0403 |
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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-200404-17.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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License |
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======= |
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Copyright 2004 Gentoo Technologies, 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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http://creativecommons.org/licenses/by-sa/1.0 |
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