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Amazon Linux AMI : dnsmasq (ALAS-2020-1458)

low Nessus Plugin ID 173278

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Synopsis

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

Description

The version of dnsmasq installed on the remote host is prior to 2.76-16.16. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1458 advisory.

 - A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
 (CVE-2019-14834)

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

Solution

Run 'yum update dnsmasq' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1458.html

https://alas.aws.amazon.com/cve/html/CVE-2019-14834.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Low

ID: 173278

File Name: ala_ALAS-2020-1458.nasl

Version: 1.0

Type: local

Agent: unix

Published: 3/22/2023

Updated: 3/22/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2019-14834

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:dnsmasq, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:dnsmasq-debuginfo, p-cpe:/a:amazon:linux:dnsmasq-utils

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/16/2020

Vulnerability Publication Date: 1/7/2020

Reference Information

CVE: CVE-2019-14834

IAVA: 2020-A-0194-S