CVE-2022-3821
MEDIUMsystemd < 251 - Denial of Service via format_timespan() Off-by-one Error
Title source: llmDescription
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.
References (7)
Core 7
Core References
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2139327
Patch, Third Party Advisory
https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
Exploit, Issue Tracking, Third Party Advisory
https://github.com/systemd/systemd/issues/23928
Patch, Third Party Advisory
https://github.com/systemd/systemd/pull/23933
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202305-15
Scores
CVSS v3
5.5
EPSS
0.0042
EPSS Percentile
33.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-193
Status
published
Products (4)
fedoraproject/fedora
35
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
systemd_project/systemd
< 251
Published
Nov 08, 2022
Tracked Since
Feb 18, 2026