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Amazon Linux 2022 : systemd (ALAS2022-2022-219)

medium Nessus Plugin ID 168589

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Synopsis

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

Description

The version of systemd installed on the remote host is prior to 250.8-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2022-2022-219 advisory.

 - A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp. (CVE-2021-3997)

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 systemd' to update your system.

See Also

https://alas.aws.amazon.com/AL2022/ALAS-2022-219.html

https://alas.aws.amazon.com/cve/html/CVE-2021-3997.html

Plugin Details

Severity: Medium

ID: 168589

File Name: al2022_ALAS2022-2022-219.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/10/2022

Updated: 9/15/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2021-3997

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:systemd-standalone-sysusers-debuginfo, p-cpe:/a:amazon:linux:systemd-networkd, p-cpe:/a:amazon:linux:systemd-pam-debuginfo, p-cpe:/a:amazon:linux:systemd-debuginfo, p-cpe:/a:amazon:linux:systemd-pam, p-cpe:/a:amazon:linux:systemd-devel, p-cpe:/a:amazon:linux:systemd-resolved, p-cpe:/a:amazon:linux:systemd-oomd-defaults, p-cpe:/a:amazon:linux:systemd-standalone-sysusers, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:systemd-standalone-tmpfiles-debuginfo, p-cpe:/a:amazon:linux:systemd-tests, p-cpe:/a:amazon:linux:systemd-rpm-macros, p-cpe:/a:amazon:linux:systemd, p-cpe:/a:amazon:linux:systemd-tests-debuginfo, p-cpe:/a:amazon:linux:systemd-libs-debuginfo, p-cpe:/a:amazon:linux:systemd-libs, p-cpe:/a:amazon:linux:systemd-container, p-cpe:/a:amazon:linux:systemd-debugsource, p-cpe:/a:amazon:linux:systemd-journal-remote, p-cpe:/a:amazon:linux:systemd-networkd-debuginfo, p-cpe:/a:amazon:linux:systemd-udev, p-cpe:/a:amazon:linux:systemd-udev-debuginfo, p-cpe:/a:amazon:linux:systemd-standalone-tmpfiles, p-cpe:/a:amazon:linux:systemd-resolved-debuginfo, p-cpe:/a:amazon:linux:systemd-journal-remote-debuginfo, p-cpe:/a:amazon:linux:systemd-container-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/6/2022

Vulnerability Publication Date: 3/8/2022

Reference Information

CVE: CVE-2021-3997