CVE-2022-3821
MEDIUM severity · CVSS 5.5 · CWE-193
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e ↗
Additional information
- NVD record
- https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4ePatch
- https://github.com/systemd/systemd/pull/23933Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=2139327Advisory
- 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://github.com/systemd/systemd/issues/23928Advisory