Detections
Analytics

Amazon Linux 2 : dhcp (ALAS-2018-963)

high Nessus Plugin ID 109131

Language:

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

Omapi code doesn't free socket descriptors when empty message is received allowing denial-of-service

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

Run 'yum update dhcp' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-963.html

Plugin Details

Severity: High

ID: 109131

File Name: al2_ALAS-2018-963.nasl

Version: 1.3

Type: local

Agent: unix

Published: 4/18/2018

Updated: 10/30/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2017-3144

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:amazon:linux:dhcp-common, p-cpe:/a:amazon:linux:dhclient, p-cpe:/a:amazon:linux:dhcp, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:dhcp-libs, p-cpe:/a:amazon:linux:dhcp-devel, p-cpe:/a:amazon:linux:dhcp-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/21/2018

Vulnerability Publication Date: 1/16/2019

Reference Information

CVE: CVE-2017-3144

ALAS: 2018-963