CVE-2022-3821

MediumCVSS 5.5/10Last modified Oct 14, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-193

Affected software

Vendor	Product	Versions
n/a	systemd	Fixed in systemd v252-rc1
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	>= V3.1.0, < V3.1.5
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	>= V3.1.0, < V3.1.5
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	>= V3.1.0, < V3.1.5
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	>= V3.1.0, < V3.1.5
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	>= V3.1.0, < V3.1.5

References

https://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue Tracking, Third Party Advisory
https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4ePatch, Third Party Advisory
https://github.com/systemd/systemd/issues/23928Exploit, Issue Tracking, Third Party Advisory
https://github.com/systemd/systemd/pull/23933Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
https://security.gentoo.org/glsa/202305-15
https://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue Tracking, Third Party Advisory
https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4ePatch, Third Party Advisory
https://github.com/systemd/systemd/issues/23928Exploit, Issue Tracking, Third Party Advisory
https://github.com/systemd/systemd/pull/23933Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
https://security.gentoo.org/glsa/202305-15
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Timeline

Published: Nov 8, 2022
Last modified: Oct 14, 2026
NVD status: Modified

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