RHEL 7 : dhcp (RHSA-2018:0483)

high Nessus Plugin ID 108274

Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0483 advisory.

- dhcp: Buffer overflow in dhclient possibly allowing code execution triggered by malicious server (CVE-2018-5732)

- dhcp: Reference count overflow in dhcpd allows denial of service (CVE-2018-5733)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL dhcp package based on the guidance in RHSA-2018:0483.

See Also

http://www.nessus.org/u?b52379d4

https://access.redhat.com/errata/RHSA-2018:0483

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1549960

https://bugzilla.redhat.com/show_bug.cgi?id=1549961

https://kb.isc.org/article/AA-01565

https://kb.isc.org/article/AA-01567

Plugin Details

Severity: High

ID: 108274

File Name: redhat-RHSA-2018-0483.nasl

Version: 1.15

Type: local

Agent: unix

Published: 3/13/2018

Updated: 4/27/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2018-5733

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

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

Patch Publication Date: 3/12/2018

Vulnerability Publication Date: 1/16/2019

Reference Information

CVE: CVE-2018-5732, CVE-2018-5733

CWE: 119, 190

IAVB: 2018-B-0034-S

RHSA: 2018:0483