Vulnerability in Systemd Project
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.
EPSS: 0.004 (33.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Systemd_project Systemd
- Fedoraproject Fedora — versions 35
- Redhat Enterprise_linux — versions 8.0, 9.0
- N/a Systemd — versions Fixed in systemd v252-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Exploit, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (vendor-advisory)
- secalert@redhat.com (vendor-advisory)
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2022-3821?
- CVE-2022-3821 is a medium-severity vulnerability in Systemd Project, classified under Off-by-one Error. CVSS score: 5.5/10. Published 2022-11-08.
- How severe is CVE-2022-3821?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-3821 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.