Dynamic Host Configuration Protocol (DHCP): Moderate Security Update 

Users of Dynamic Host Configuration Protocol (DHCP) please be advised of a Moderate Security Update that has been identified.
To view this vulnerability, possible remedies, and others please check out the Security Advisories at Critical Watch (http://criticalwatch.com/support/security-advisories.aspx)

RHSA-2010:0923-01: [RHSA-2010:0923-01] Moderate: dhcp security update
Product: Red Hat Enterprise Linux
Synopsis: Moderate: dhcp security update

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows

individual devices on an IP network to get their own network configuration

information, including an IP address, a subnet mask, and a broadcast

address. DHCPv6 is the DHCP protocol version for IPv6 networks.

A NULL pointer dereference flaw was discovered in the way the dhcpd daemon

parsed DHCPv6 packets. A remote attacker could use this flaw to crash dhcpd

via a specially-crafted DHCPv6 packet, if dhcpd was running as a DHCPv6

server. (CVE-2010-3611)

Users running dhcpd as a DHCPv6 server should upgrade to these updated

packages, which contain a backported patch to correct this issue. After

installing this update, all DHCP servers will be restarted automatically.

Read more at http://www.criticalwatch.com