GLSA 200808-05 ISC DHCP: Denial of Service
Posted on: 08/06/2008 11:25 PM

A new security update has been released for Gentoo Linux - ISC DHCP: Denial of Service. Here the announcement:

Gentoo Linux Security Advisory GLSA 200808-05
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http://security.gentoo.org/
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Severity: Normal
Title: ISC DHCP: Denial of Service
Date: August 06, 2008
Bugs: #227135
ID: 200808-05

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Synopsis
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A Denial of Service vulnerability was discovered in ISC DHCP.

Background
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ISC DHCP is ISC's reference implementation of all aspects of the
Dynamic Host Configuration Protocol.

Affected packages
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Package / Vulnerable / Unaffected
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1 net-misc/dhcp lt; 3.1.1 gt;=3D 3.1.1

Description
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A buffer overflow error was found in ISC DHCP server, that can only be
exploited under unusual server configurations where the DHCP server is
configured to provide clients with a large set of DHCP options.

Impact
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A remote attacker could exploit this vulnerability to cause a Denial of
Service.

Workaround
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There is no known workaround at this time.

Resolution
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All ISC DHCP users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=3Dnet-misc/dhcp-3.1.1"

References
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[ 1 ] CVE-2007-0062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0062

Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200808-05.xml

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.

License
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Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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