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Red Hat OpenShift: CVE-2020-2732: Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

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Red Hat OpenShift: CVE-2020-2732: Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

Severity
2
CVSS
(AV:A/AC:M/Au:S/C:P/I:N/A:N)
Published
04/08/2020
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

References

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