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    CVE-2022-37394

    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.

    Published:Aug 3, 2022
    Last Modified:Nov 21, 2024
    EPS:Aug 3, 2022
    EPSS Score:0.00051
    CVSS Score:3.3

    Affected Products

    Vendor
    Openstack
    Product
    Nova
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    https://bugs.launchpad.net/ossa/+bug/1981813https://bugs.launchpad.net/ossa/+bug/1981813

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    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