[gentoo-announce] [ GLSA 200808-05 ] ISC DHCP: Denial of Service

[news 28]

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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

========

 

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 ( -at -) 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