Описание
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
Ссылки
- Third Party AdvisoryVDB Entry
- Third Party Advisory
- Third Party Advisory
- Issue TrackingPatchThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party AdvisoryVDB Entry
- Third Party Advisory
- Third Party Advisory
- Issue TrackingPatchThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
Одно из
Одно из
EPSS
6.7 Medium
CVSS3
5.6 Medium
CVSS3
4.7 Medium
CVSS2
Дефекты
Связанные уязвимости
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
A flaw was found in the way KVM hypervisor handled x2APIC Machine Spec ...
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
6.7 Medium
CVSS3
5.6 Medium
CVSS3
4.7 Medium
CVSS2