RHEL 7 : dhcp (RHSA-2018:0158)

High Nessus Plugin ID 106332

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for dhcp is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) 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. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es) :

* It was found that the DHCP daemon did not properly clean up closed OMAPI connections in certain cases. A remote attacker able to connect to the OMAPI port could use this flaw to exhaust file descriptors in the DHCP daemon, leading to a denial of service in the OMAPI functionality. (CVE-2017-3144)

Solution

Update the affected packages.

See Also

https://kb.isc.org/article/AA-01541

http://rhn.redhat.com/errata/RHSA-2018-0158.html

https://www.redhat.com/security/data/cve/CVE-2017-3144.html

Plugin Details

Severity: High

ID: 106332

File Name: redhat-RHSA-2018-0158.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2018/01/25

Modified: 2018/09/07

Dependencies: 12634

Risk Information

Risk Factor: High

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dhclient, p-cpe:/a:redhat:enterprise_linux:dhcp, p-cpe:/a:redhat:enterprise_linux:dhcp-common, p-cpe:/a:redhat:enterprise_linux:dhcp-debuginfo, p-cpe:/a:redhat:enterprise_linux:dhcp-devel, p-cpe:/a:redhat:enterprise_linux:dhcp-libs, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:enterprise_linux:7.5

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/01/25

Reference Information

CVE: CVE-2017-3144

RHSA: 2018:0158