Scientific Linux Security Update : dhcp on SL5.x i386/x86_64

Medium Nessus Plugin ID 61427


The remote Scientific Linux host is missing one or more security updates.


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.

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.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 61427

File Name: sl_20120803_dhcp_on_SL5_x.nasl

Version: $Revision: 1.2 $

Type: local

Agent: unix

Published: 2012/08/06

Modified: 2014/08/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.1

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2012/08/03

Reference Information

CVE: CVE-2012-3571