CentOS 4 / 5 : dhcp (CESA-2011:1160)

high Nessus Plugin ID 55860

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated dhcp packages that fix two security issues are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

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.

Two denial of service flaws were found in the way the dhcpd daemon handled certain incomplete request packets. A remote attacker could use these flaws to crash dhcpd via a specially crafted request.
(CVE-2011-2748, CVE-2011-2749)

Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing this update, all DHCP servers will be restarted automatically.

Solution

Update the affected dhcp packages.

Plugin Details

Severity: High

ID: 55860

File Name: centos_RHSA-2011-1160.nasl

Version: 1.15

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 8/17/2011

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:dhclient, p-cpe:/a:centos:centos:dhcp, p-cpe:/a:centos:centos:dhcp-devel, p-cpe:/a:centos:centos:libdhcp4client, p-cpe:/a:centos:centos:libdhcp4client-devel, cpe:/o:centos:centos:4, cpe:/o:centos:centos:5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/16/2011

Vulnerability Publication Date: 8/15/2011

Reference Information

CVE: CVE-2011-2748, CVE-2011-2749

BID: 49120

RHSA: 2011:1160

Detections

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