Important: dhcp security update

An updated dhcp package that corrects a security flaw is now available for
Red Hat Enterprise Linux 2.1.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

The dhcp package provides the ISC Dynamic Host Configuration Protocol
(DHCP) server and relay agent, dhcpd. DHCP is a protocol that allows
devices to get their own network configuration information from a server.

A bug was found in the way dhcpd validates certain DHCP protocol options.
A malicious DHCP client could send a carefully crafted DHCP request and cause
dhcpd to crash or possibly execute arbitrary code. (CVE-2007-5365)

All users of dhcp should upgrade to this updated package, which contains a
backported patch that resolves this issue.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

327781 - CVE-2007-5365 dhcpd stack-based buffer overlow

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0063
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5365
http://www.redhat.com/security/updates/classification/#important