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    CVE-2021-24031

    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.

    Published:Feb 11, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 4, 2021
    EPSS Score:0.00063
    CVSS Score:5.5

    Affected Products

    Vendor
    Facebook
    Product
    Zstandard

    Exploits

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404https://github.com/facebook/zstd/issues/1630https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404https://github.com/facebook/zstd/issues/1630

    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