Scientific Linux Security Update : dhcp on SL5.x i386/x86_64
Medium Nessus Plugin ID 61427
SynopsisThe remote Scientific Linux host is missing one or more security updates.
DescriptionThe 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.
A denial of service flaw was found in the way the dhcpd daemon handled zero-length client identifiers. A remote attacker could use this flaw to send a specially crafted request to dhcpd, possibly causing it to enter an infinite loop and consume an excessive amount of CPU time.
Users of DHCP 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.
SolutionUpdate the affected packages.