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[Full-disclosure] [ GLSA 200808-05 ] ISC DHCP: Denial of Service
From: Tobias Heinlein <keytoaster_at_nospam>Date: Wed Aug 06 2008 - 20:16:35 GMT
To: gentoo-announce@gentoo.org
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200808-05
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Synopsis
A Denial of Service vulnerability was discovered in ISC DHCP.
Background
ISC DHCP is ISC's reference implementation of all aspects of the Dynamic Host Configuration Protocol.
Affected packages
Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 3.1.1 >= 3.1.1
Description
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
A remote attacker could exploit this vulnerability to cause a Denial of Service.
Workaround
There is no known workaround at this time.
Resolution
All ISC DHCP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dhcp-3.1.1"
References
[ 1 ] CVE-2007-0062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0062
Availability
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?
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
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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