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.
CVSS Details
- CVSS 3.1 Base Score: 5.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-4.14.173-137.228Upgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade perf-debuginfoUpgrade perfUpgrade kernel-headersUpgrade kernel-develUpgrade kernel | Apr 27, 2020 | Apr 8, 2020 |
| Amazon_linux | — | Upgrade kernel | Apr 24, 2020 | Feb 24, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 8, 2020 |
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | May 13, 2020 | Apr 8, 2020 |
| Debian | — | Upgrade linux | Apr 30, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debugUpgrade kernel-debug-develUpgrade kernel-debuginfoUpgrade kernel-tools-libsUpgrade kernel-develUpgrade kernel-headersUpgrade python-perfUpgrade kernel-toolsUpgrade perf | Jun 17, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernel-debuginfoUpgrade kernelUpgrade kernel-develUpgrade kernel-headersUpgrade perfUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-debuginfo-common-x86_64Upgrade python-perf | Apr 16, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-headersUpgrade kernel-develUpgrade kernelUpgrade python-perfUpgrade kernel-toolsUpgrade perfUpgrade kernel-tools-libs | Feb 3, 2021 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-toolsUpgrade perfUpgrade kernel-sourceUpgrade python-perfUpgrade kernel-develUpgrade kernel-headersUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade bpftool | Mar 24, 2020 | Mar 23, 2020 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Mar 2, 2020 | Feb 24, 2020 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Apr 8, 2020 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | May 13, 2020 | Apr 8, 2020 |
| Suse | — | Upgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-defaultUpgrade kernel-docs | Mar 3, 2020 | Feb 24, 2020 |
| Ubuntu | — | Upgrade linux-image-oemUpgrade linux-image-snapdragonUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-4.4.0-176-generic-lpaeUpgrade linux-image-4.4.0-176-powerpc-smpUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-4.15.0-1074-azureUpgrade linux-image-oracleUpgrade linux-image-4.15.0-1057-raspi2Upgrade linux-image-4.15.0-1075-azureUpgrade linux-image-5.3.0-42-snapdragonUpgrade linux-image-4.15.0-91-generic-lpaeUpgrade linux-image-gke-5.3Upgrade linux-image-5.0.0-1032-gkeUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-5.3.0-42-genericUpgrade linux-image-4.15.0-1056-kvmUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-5.3.0-1013-awsUpgrade linux-image-4.4.0-176-powerpc64-embUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-awsUpgrade linux-image-powerpc64-smpUpgrade linux-image-5.3.0-1016-azureUpgrade linux-image-gkeUpgrade linux-image-5.3.0-1014-gcpUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-kvmUpgrade linux-image-5.0.0-1033-gcpUpgrade linux-image-aws-lts-18.04Upgrade linux-image-4.4.0-176-powerpc-e500mcUpgrade linux-image-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-aws-edgeUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-raspi2Upgrade linux-image-azure-edgeUpgrade linux-image-powerpc-e500mcUpgrade linux-image-azureUpgrade linux-image-5.0.0-1027-awsUpgrade linux-image-powerpc-smpUpgrade linux-image-gcp-edgeUpgrade linux-image-4.4.0-1064-awsUpgrade linux-image-4.15.0-91-genericUpgrade linux-image-gke-5.0Upgrade linux-image-5.0.0-1035-azureUpgrade linux-image-4.15.0-1074-snapdragonUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-4.4.0-176-powerpc64-smpUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-virtualUpgrade linux-image-4.4.0-1068-kvmUpgrade linux-image-4.15.0-1035-oracleUpgrade linux-image-4.15.0-1055-gkeUpgrade linux-image-5.3.0-42-generic-lpaeUpgrade linux-image-4.4.0-176-lowlatencyUpgrade linux-image-powerpc64-embUpgrade linux-image-5.3.0-1011-oracleUpgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-generic-lts-xenialUpgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-4.15.0-1076-oemUpgrade linux-image-4.15.0-91-lowlatencyUpgrade linux-image-5.3.0-1012-kvmUpgrade linux-image-4.4.0-176-genericUpgrade linux-image-4.15.0-1058-gcpUpgrade linux-image-5.0.0-1043-oem-osp1Upgrade linux-image-4.4.0-1104-awsUpgrade linux-image-5.3.0-1014-gkeUpgrade linux-image-raspi2-hwe-18.04Upgrade linux-image-5.3.0-1019-raspi2Upgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-oem-osp1Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-5.0.0-1013-oracleUpgrade linux-image-lowlatencyUpgrade linux-image-gcpUpgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-5.3.0-42-lowlatencyUpgrade linux-image-aws-hweUpgrade linux-image-gke-4.15Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-4.15.0-1063-aws | Mar 17, 2020 | Feb 24, 2020 |
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