UBUNTU-CVE-2019-15718

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    UBUNTU-CVE-2019-15718

    Published: 3 Sept 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-15718
    Aliases:
    USN-4120-1

    Summary:

    Details: In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted, which disables access controls for incoming D-Bus messages. An unprivileged user can exploit this by executing D-Bus methods that should be restricted to privileged users, in order to change the system's DNS resolver settings.

    References: https://ubuntu.com/security/CVE-2019-15718, https://ubuntu.com/security/notices/USN-4120-1, https://www.cve.org/CVERecord?id=CVE-2019-15718

    Affected packages

    Package

    Name: systemd

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -237-3ubuntu10.28

    Affected versions

    234-2ubuntu12

    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