UBUNTU-CVE-2021-24031

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    UBUNTU-CVE-2021-24031

    Published: 10 Feb 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-24031

    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://ubuntu.com/security/CVE-2021-24031, https://ubuntu.com/security/notices/USN-4760-1, https://ubuntu.com/security/notices/USN-5720-1, https://www.cve.org/CVERecord?id=CVE-2021-24031

    Affected packages

    Package

    Name: libzstd

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-1~ubuntu0.16.04.1+esm3?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.1+dfsg-1~ubuntu0.16.04.1+esm3

    Affected versions

    0.4.5-1

    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
    UBUNTU-CVE-2021-24031 | CVE-DB