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Amazon Linux 2 : systemd (ALAS-2022-1899)

medium Nessus Plugin ID 168459

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Synopsis

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

Description

The version of systemd installed on the remote host is prior to 219-78. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1899 advisory.

 - An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service. (CVE-2022-3821)

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/AL2/ALAS-2022-1899.html

https://alas.aws.amazon.com/cve/html/CVE-2022-3821.html

Plugin Details

Severity: Medium

ID: 168459

File Name: al2_ALAS-2022-1899.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/7/2022

Updated: 9/20/2023

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-2022-3821

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:libgudev1, p-cpe:/a:amazon:linux:systemd-resolved, p-cpe:/a:amazon:linux:systemd-journal-gateway, p-cpe:/a:amazon:linux:systemd-libs, p-cpe:/a:amazon:linux:systemd-networkd, p-cpe:/a:amazon:linux:libgudev1-devel, p-cpe:/a:amazon:linux:systemd, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:systemd-python, p-cpe:/a:amazon:linux:systemd-sysv, p-cpe:/a:amazon:linux:systemd-debuginfo, p-cpe:/a:amazon:linux:systemd-devel

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: 12/1/2022

Vulnerability Publication Date: 11/8/2022

Reference Information

CVE: CVE-2022-3821