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Red Hat: CVE-2020-2732: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (Multiple Advisories)

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Red Hat: CVE-2020-2732: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (Multiple Advisories)

Severity
2
CVSS
(AV:A/AC:M/Au:S/C:P/I:N/A:N)
Published
04/08/2020
Created
05/14/2020
Added
05/13/2020
Modified
03/13/2024

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)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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