UBUNTU-CVE-2022-37394

    Dashboard / Vulnerabilities / UBUNTU-CVE-2022-37394

    UBUNTU-CVE-2022-37394

    Published: 3 Aug 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2022-37394
    Aliases:
    USN-5866-1

    Summary:

    Details: An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service. Only Nova deployments configured with SR-IOV are affected.

    References: https://ubuntu.com/security/CVE-2022-37394, https://review.opendev.org/c/openstack/nova/+/849985, https://review.opendev.org/c/openstack/nova/+/850003, https://ubuntu.com/security/notices/USN-5866-1, https://www.cve.org/CVERecord?id=CVE-2022-37394

    Affected packages

    Package

    Name: nova

    Purl: pkg:deb/ubuntu/nova@2:21.2.4-0ubuntu2.2?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:21.2.4-0ubuntu2.2

    Affected versions

    2:20.0.0-0ubuntu1

    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-2022-37394 | CVE-DB