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Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

🗓️ 12 May 2020 15:31:34Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 1 Views

KVM nested virtualization flaw allows level two guest to trick level zero hypervisor into accessing level one resources during instruction emulation.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64bpftool0:4.18.0-193.1.2.el8_2bpftool-0:4.18.0-193.1.2.el8_2.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool0:4.18.0-193.1.2.el8_2bpftool-0:4.18.0-193.1.2.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool0:4.18.0-193.1.2.el8_2bpftool-0:4.18.0-193.1.2.el8_2.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool0:4.18.0-193.1.2.el8_2bpftool-0:4.18.0-193.1.2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8aarch64bpftool-debuginfo0:4.18.0-193.1.2.el8_2bpftool-debuginfo-0:4.18.0-193.1.2.el8_2.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool-debuginfo0:4.18.0-193.1.2.el8_2bpftool-debuginfo-0:4.18.0-193.1.2.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool-debuginfo0:4.18.0-193.1.2.el8_2bpftool-debuginfo-0:4.18.0-193.1.2.el8_2.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool-debuginfo0:4.18.0-193.1.2.el8_2bpftool-debuginfo-0:4.18.0-193.1.2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8aarch64kernel0:4.18.0-193.1.2.el8_2kernel-0:4.18.0-193.1.2.el8_2.aarch64.rpm
Red Hat Enterprise Linux8ppc64lekernel0:4.18.0-193.1.2.el8_2kernel-0:4.18.0-193.1.2.el8_2.ppc64le.rpm
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28 Jun 2026 12:33Current
6.8Medium risk
Vulners AI Score6.8
CVSS 22.3
CVSS 3.15.8 - 6.8
EPSS0.00927
SSVC
1