CVE-2021-24031

    Dashboard / Vulnerabilities / CVE-2021-24031

    CVE-2021-24031

    Published: 4 Mar 2021Last Modified: 9 Jul 2026

    Summary:

    Details: In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.

    References: https://www.facebook.com/security/advisories/cve-2021-24031, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404, https://github.com/facebook/zstd/issues/1630

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -52181f877a96ca3feb688820ba852a0c044cc620

    Affected versions

    v1.4.0

    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-2021-24031 | CVE-DB