CVE-2021-3997

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    CVE-2021-3997

    Published: 23 Aug 2022Last Modified: 7 Aug 2026

    Summary:

    Details: A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.

    References: https://security.gentoo.org/glsa/202305-15, https://access.redhat.com/security/cve/CVE-2021-3997, https://bugzilla.redhat.com/show_bug.cgi?id=2024639, https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1, https://www.openwall.com/lists/oss-security/2022/01/10/2

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 1742aae2aa8cd33897250d6fcfbe10928e43eb2f
    Fixed -617c67a039b25139e5516aa48931c7024c6f8dc5

    Affected versions

    v250.1

    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
    CVE-2021-3997 | CVE-DB