Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Systemd Project | Systemd | <= 251 |
| Redhat | Enterprise Linux | 8.0 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue TrackingThird Party Advisory
- https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446badPatchThird Party Advisory
- https://github.com/systemd/systemd/issues/23928ExploitIssue TrackingThird Party Advisory
- https://github.com/systemd/systemd/pull/23933PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202305-15
- https://bugzilla.redhat.com/show_bug.cgi?id=2139327Issue TrackingThird Party Advisory
- https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446badPatchThird Party Advisory
- https://github.com/systemd/systemd/issues/23928ExploitIssue TrackingThird Party Advisory
- https://github.com/systemd/systemd/pull/23933PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202305-15
FAQ
What is CVE-2022-3821?
CVE-2022-3821 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_...
How severe is CVE-2022-3821?
CVE-2022-3821 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-3821?
Check the references section above for vendor advisories and patch information. Affected products include: Systemd Project Systemd, Redhat Enterprise Linux, Fedoraproject Fedora.