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 python-perfUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-4.14.173-137.228Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade kernel-headersUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-tools-devel | 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 kernelUpgrade kernel-rt | May 13, 2020 | Apr 8, 2020 |
| Debian | — | Upgrade linux | Apr 30, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debugUpgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-tools-libsUpgrade kernel-debug-develUpgrade kernel-toolsUpgrade perfUpgrade python-perf | Jun 17, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernel-debuginfoUpgrade kernelUpgrade kernel-develUpgrade kernel-headersUpgrade perfUpgrade python-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64 | Apr 16, 2020 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-tools-libsUpgrade python-perfUpgrade kernel-toolsUpgrade perfUpgrade kernel-develUpgrade kernel-headersUpgrade kernel | Feb 3, 2021 | Apr 8, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernelUpgrade kernel-develUpgrade python3-perfUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-headersUpgrade kernel-sourceUpgrade python-perfUpgrade perfUpgrade kernel-tools | 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 kernel-rtUpgrade kernel | May 13, 2020 | Apr 8, 2020 |
| Suse | — | Upgrade kernel-obs-buildUpgrade kernel-docsUpgrade kernel-default-extraUpgrade kernel-default | Mar 3, 2020 | Feb 24, 2020 |
| Ubuntu | — | Upgrade linux-image-5.3.0-1014-gcpUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-kvmUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-oracleUpgrade linux-image-gke-5.3Upgrade linux-image-5.0.0-1032-gkeUpgrade linux-image-snapdragonUpgrade linux-image-4.15.0-1057-raspi2Upgrade linux-image-4.15.0-1056-kvmUpgrade linux-image-5.3.0-1013-awsUpgrade linux-image-4.15.0-91-generic-lpaeUpgrade linux-image-5.3.0-1016-azureUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-4.15.0-1075-azureUpgrade linux-image-powerpc64-smpUpgrade linux-image-gkeUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-4.15.0-1074-azureUpgrade linux-image-oemUpgrade linux-image-awsUpgrade linux-image-5.0.0-1033-gcpUpgrade linux-image-aws-lts-18.04Upgrade linux-image-5.3.0-42-snapdragonUpgrade linux-image-5.3.0-42-genericUpgrade linux-image-4.4.0-176-powerpc64-embUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-4.4.0-176-powerpc-smpUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-4.4.0-176-generic-lpaeUpgrade linux-image-4.4.0-176-powerpc-e500mcUpgrade linux-image-raspi2Upgrade linux-image-azure-edgeUpgrade linux-image-4.15.0-1063-awsUpgrade linux-image-gke-4.15Upgrade linux-image-powerpc-e500mcUpgrade linux-image-4.15.0-1058-gcpUpgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-4.15.0-1076-oemUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-oem-osp1Upgrade linux-image-powerpc64-embUpgrade linux-image-4.15.0-91-lowlatencyUpgrade linux-image-raspi2-hwe-18.04Upgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-gcp-edgeUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-4.4.0-176-genericUpgrade linux-image-5.3.0-1012-kvmUpgrade linux-image-4.4.0-1104-awsUpgrade linux-image-aws-edgeUpgrade linux-image-generic-lts-xenialUpgrade linux-image-4.4.0-176-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-4.15.0-1074-snapdragonUpgrade linux-image-4.4.0-1064-awsUpgrade linux-image-5.3.0-42-generic-lpaeUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-4.15.0-1055-gkeUpgrade linux-image-4.15.0-1035-oracleUpgrade linux-image-5.0.0-1027-awsUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-5.3.0-42-lowlatencyUpgrade linux-image-4.4.0-176-powerpc64-smpUpgrade linux-image-azureUpgrade linux-image-5.0.0-1035-azureUpgrade linux-image-aws-hweUpgrade linux-image-5.3.0-1011-oracleUpgrade linux-image-genericUpgrade linux-image-5.0.0-1013-oracleUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-lowlatencyUpgrade linux-image-virtualUpgrade linux-image-5.3.0-1019-raspi2Upgrade linux-image-4.4.0-1068-kvmUpgrade linux-image-5.0.0-1043-oem-osp1Upgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-5.3.0-1014-gkeUpgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-gke-5.0Upgrade linux-image-powerpc-smpUpgrade linux-image-4.15.0-91-genericUpgrade linux-image-gcp | Mar 17, 2020 | Feb 24, 2020 |
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