USN-5720-1

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    USN-5720-1

    Published: 9 Nov 2022Last Modified: 25 Jun 2026

    Summary: libzstd vulnerabilities

    Details: It was discovered that Zstandard was not properly managing file permissions when generating output files. A local attacker could possibly use this issue to cause a race condition and gain unauthorized access to sensitive data.

    References: https://ubuntu.com/security/notices/USN-5720-1, https://ubuntu.com/security/CVE-2021-24031, https://ubuntu.com/security/CVE-2021-24032

    Affected packages

    Package

    Name: libzstd

    Purl: pkg:deb/ubuntu/libzstd?arch=source&distro=esm-infra%2Fxenial

    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
    USN-5720-1 | CVE-DB