CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
17.2%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | nova | < 2:26.0.0~rc1-3 | nova_2:26.0.0~rc1-3_all.deb |
Debian | 11 | all | nova | <= 2:22.0.1-2+deb11u1 | nova_2:22.0.1-2+deb11u1_all.deb |
Debian | 999 | all | nova | < 2:26.0.0~rc1-3 | nova_2:26.0.0~rc1-3_all.deb |
Debian | 13 | all | nova | < 2:26.0.0~rc1-3 | nova_2:26.0.0~rc1-3_all.deb |