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
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: ISC DHCP: Denial of Service
Date: August 06, 2008
Bugs: #227135
ID: 200808-05
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
A Denial of Service vulnerability was discovered in ISC DHCP.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ISC DHCP is ISC's reference implementation of all aspects of the
Dynamic Host Configuration Protocol.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/dhcp < 3.1.1 >=3D 3.1.1
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
=3D=3D=3D=3D=3D=3D
A remote attacker could exploit this vulnerability to cause a Denial of
Service.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All ISC DHCP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-misc/dhcp-3.1.1"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2007-0062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0062
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
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
=3D=3D=3D=3D=3D=3D=3D
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
