CVE-2022-3821

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.

CVSS 3.1

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

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-25)

CWE

CWE-193

Published

2022-11-08

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• fedoraproject:fedora
• redhat:enterprise_linux
• systemd_project:systemd

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2139327
• https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
• https://github.com/systemd/systemd/issues/23928
• https://github.com/systemd/systemd/pull/23933
• https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html

Check your stackJSON