CVE-2022-3821

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.

Affected Software

Weaknesses

• CWE-193: CWE-193 - Off-by-one Error

ADP Enrichment

CVE Program Container

Additional References

• https://bugzilla.redhat.com/show_bug.cgi?id=2139327
• https://github.com/systemd/systemd/issues/23928
• https://github.com/systemd/systemd/pull/23933
• https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
• https://security.gentoo.org/glsa/202305-15
• https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2139327
• https://github.com/systemd/systemd/issues/23928
• https://github.com/systemd/systemd/pull/23933
• https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVBQC2VLSDVQAPJTEMTREXDL4HYLXG2P/
• https://security.gentoo.org/glsa/202305-15
• https://lists.debian.org/debian-lts-announce/2023/06/msg00036.html

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