UBUNTU-CVE-2021-3560

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    UBUNTU-CVE-2021-3560

    Published: 3 Jun 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-3560
    Aliases:
    USN-4980-1

    Summary:

    Details: It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

    References: https://ubuntu.com/security/CVE-2021-3560, https://ubuntu.com/security/notices/USN-4980-1, https://www.cve.org/CVERecord?id=CVE-2021-3560, https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Affected packages

    Package

    Name: policykit-1

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.105-26ubuntu1.1

    Affected versions

    0.105-26ubuntu1

    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-2021-3560 | CVE-DB