{"id":"UBUNTU-CVE-2022-37394","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.","modified":"2026-01-30T01:02:09.045082Z","published":"2022-08-03T07:15:00Z","related":["USN-5866-1"],"upstream":["CVE-2022-37394"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-37394"},{"type":"REPORT","url":"https://review.opendev.org/c/openstack/nova/+/849985"},{"type":"REPORT","url":"https://review.opendev.org/c/openstack/nova/+/850003"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5866-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-37394"}],"affected":[{"package":{"name":"nova","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nova@2:21.2.4-0ubuntu2.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:21.2.4-0ubuntu2.2"}]}],"versions":["2:20.0.0-0ubuntu1","2:21.0.0~b1~git2019120415.45fb747c98-0ubuntu1","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu2","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu4","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu5","2:21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2","2:21.0.0-0ubuntu0.20.04.1","2:21.0.0-0ubuntu0.20.04.2","2:21.1.0-0ubuntu1","2:21.1.1-0ubuntu2","2:21.1.2-0ubuntu1","2:21.2.0-0ubuntu1","2:21.2.1-0ubuntu1","2:21.2.2-0ubuntu1","2:21.2.3-0ubuntu1","2:21.2.4-0ubuntu1","2:21.2.4-0ubuntu2","2:21.2.4-0ubuntu2.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"nova-ajax-console-proxy","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-api","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_version":"2:21.2.4-0ubuntu2.2","binary_name":"nova-api-metadata"},{"binary_name":"nova-api-os-compute","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-api-os-volume","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-cells","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-common","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute-kvm","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute-libvirt","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute-lxc","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute-qemu","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-compute-vmware","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_version":"2:21.2.4-0ubuntu2.2","binary_name":"nova-compute-xen"},{"binary_name":"nova-conductor","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-novncproxy","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-scheduler","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-serialproxy","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-spiceproxy","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"nova-volume","binary_version":"2:21.2.4-0ubuntu2.2"},{"binary_name":"python3-nova","binary_version":"2:21.2.4-0ubuntu2.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-37394.json"}},{"package":{"name":"nova","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/nova@3:25.1.0-0ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:25.1.0-0ubuntu1"}]}],"versions":["3:24.0.0-0ubuntu1","3:24.0.0+git2022030310.3f274c65cc-0ubuntu2","3:25.0.0-0ubuntu1","3:25.0.0-0ubuntu1.1","3:25.0.1-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"3:25.1.0-0ubuntu1","binary_name":"nova-ajax-console-proxy"},{"binary_name":"nova-api","binary_version":"3:25.1.0-0ubuntu1"},{"binary_version":"3:25.1.0-0ubuntu1","binary_name":"nova-api-metadata"},{"binary_name":"nova-api-os-compute","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-api-os-volume","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-cells","binary_version":"3:25.1.0-0ubuntu1"},{"binary_version":"3:25.1.0-0ubuntu1","binary_name":"nova-common"},{"binary_name":"nova-compute","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-ironic","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-kvm","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-libvirt","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-lxc","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-qemu","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-vmware","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-compute-xen","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-conductor","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-novncproxy","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-scheduler","binary_version":"3:25.1.0-0ubuntu1"},{"binary_version":"3:25.1.0-0ubuntu1","binary_name":"nova-serialproxy"},{"binary_name":"nova-spiceproxy","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"nova-volume","binary_version":"3:25.1.0-0ubuntu1"},{"binary_name":"python3-nova","binary_version":"3:25.1.0-0ubuntu1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-37394.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}