UBUNTU-CVE-2019-3844

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    UBUNTU-CVE-2019-3844

    Published: 26 Apr 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-3844
    Aliases:
    USN-4269-1

    Summary:

    Details: It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.

    References: https://ubuntu.com/security/CVE-2019-3844, https://ubuntu.com/security/notices/USN-4269-1, https://www.cve.org/CVERecord?id=CVE-2019-3844

    Affected packages

    Package

    Name: systemd

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -237-3ubuntu10.38

    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