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    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.

    Published:Jul 8, 2022
    Last Modified:May 2, 2025
    EPS:Nov 8, 2022
    EPSS Score:0.00019
    CVSS Score:5.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Systemd Project
    Product
    Systemd

    Exploits

    https://github.com/systemd/systemd/issues/23928https://github.com/systemd/systemd/issues/23928

    Common Weakness Enumeration

    CWE-193 Off-by-one Error

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://bugzilla.redhat.com/show_bug.cgi?id=2139327
    https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
    https://github.com/systemd/systemd/issues/23928
    https://github.com/systemd/systemd/pull/23933
    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://bugzilla.redhat.com/show_bug.cgi?id=2139327
    https://github.com/systemd/systemd/commit/9102c625a673a3246d7e73d8737f3494446bad4e
    https://github.com/systemd/systemd/issues/23928
    https://github.com/systemd/systemd/pull/23933
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High