Amazon Linux 2022 : dnsmasq (ALAS2022-2022-227)

high Nessus Plugin ID 168573

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Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

The version of dnsmasq installed on the remote host is prior to 2.86-10. It is, therefore, affected by a vulnerability as referenced in the ALAS2022-2022-227 advisory.

- A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service. (CVE-2022-0934)

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.

Plugin Details

Severity: High

ID: 168573

File Name: al2022_ALAS2022-2022-227.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 12/9/2022

Updated: 12/9/2022

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: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2022-0934

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:dnsmasq-debugsource, p-cpe:/a:amazon:linux:dnsmasq-debuginfo, p-cpe:/a:amazon:linux:dnsmasq, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:dnsmasq-utils, p-cpe:/a:amazon:linux:dnsmasq-utils-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: 12/6/2022

Vulnerability Publication Date: 4/3/2022

Reference Information

CVE: CVE-2022-0934

Detections

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