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TI-2022-03501 Aliases CVE-2022-3821GHSA-cwpv-5v9v-5797

An off-by-one Error issue was discovered in Systemd in format_timespan() function of…

Priority LOW 25CWE-193Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—systemdFixed in systemd v252-rc1—No fix listedCNA
  • systemd Vendor— Affected Fixed in systemd v252-rc1 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*up to 251Vulnerablesystemd
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
  • cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* Versions up to 251 Vulnerable ·systemd
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject

Remediation

Red Hat 3 advisories

  • RHSA-2024:1105 Released 2024-03-05 · Red Hat rating Moderate
    systemd security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) systemd-239-58.el8_6.13, systemd-container-239-58.el8_6.13, systemd-devel-239-58.el8_6.13 +5
  • RHSA-2023:0336 Released 2023-01-23 · Red Hat rating Moderate
    systemd security update
    • Red Hat Enterprise Linux AppStream (v. 9) systemd-devel-250-12.el9_1.1, systemd-journal-remote-250-12.el9_1.1
    • Red Hat Enterprise Linux BaseOS (v. 9) systemd-250-12.el9_1.1, systemd-container-250-12.el9_1.1, systemd-libs-250-12.el9_1.1 +5
  • RHSA-2023:0100 Released 2023-01-12 · Red Hat rating Moderate
    systemd security and bug fix update
    • Red Hat Enterprise Linux BaseOS (v. 8) systemd-239-68.el8_7.1, systemd-container-239-68.el8_7.1, systemd-devel-239-68.el8_7.1 +5

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:0336
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:0100
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:0336
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2024:1105
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-3821
  2. 2026-10-03 Alias added: GHSA-cwpv-5v9v-5797

References

Exploit 1

Patch 2

Advisory 3

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences