A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-kernel-tools-libs-devel | May 4, 2022 | Mar 4, 2022 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-bpftoolamazon-linux-ami-2-upgrade-bpftool-debuginfoamazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-4-14-246-187-474amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-62-55-141amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-microvm-kernelamazon-linux-ami-2-upgrade-microvm-kernel-debuginfoamazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-microvm-kernel-develamazon-linux-ami-2-upgrade-microvm-kernel-headersamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo | Sep 16, 2021 | Sep 16, 2021 | |
| Centos_linux | — | centos-upgrade-kernelcentos-upgrade-kernel-rt | Oct 14, 2021 | Oct 12, 2021 |
| Debian | debian-upgrade-linux | Nov 29, 2021 | Nov 29, 2021 | |
| Huawei Euleros 2_0_sp9 | huawei-euleros-2_0_sp9-upgrade-kernelhuawei-euleros-2_0_sp9-upgrade-kernel-toolshuawei-euleros-2_0_sp9-upgrade-kernel-tools-libshuawei-euleros-2_0_sp9-upgrade-python3-perf | Nov 12, 2021 | Nov 11, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek | Aug 17, 2021 | Aug 16, 2021 |
| Redhat_linux | redhat-upgrade-kernelredhat-upgrade-kernel-rt | Sep 29, 2021 | Sep 28, 2021 | |
| Rocky_linux | rocky-upgrade-bpftoolrocky-upgrade-bpftool-debuginforocky-upgrade-kernelrocky-upgrade-kernel-corerocky-upgrade-kernel-cross-headersrocky-upgrade-kernel-debugrocky-upgrade-kernel-debug-corerocky-upgrade-kernel-debug-debuginforocky-upgrade-kernel-debug-develrocky-upgrade-kernel-debug-modulesrocky-upgrade-kernel-debug-modules-extrarocky-upgrade-kernel-debuginforocky-upgrade-kernel-debuginfo-common-x86_64rocky-upgrade-kernel-develrocky-upgrade-kernel-headersrocky-upgrade-kernel-modulesrocky-upgrade-kernel-modules-extrarocky-upgrade-kernel-rtrocky-upgrade-kernel-rt-corerocky-upgrade-kernel-rt-debugrocky-upgrade-kernel-rt-debug-corerocky-upgrade-kernel-rt-debug-debuginforocky-upgrade-kernel-rt-debug-develrocky-upgrade-kernel-rt-debug-modulesrocky-upgrade-kernel-rt-debug-modules-extrarocky-upgrade-kernel-rt-debuginforocky-upgrade-kernel-rt-debuginfo-common-x86_64rocky-upgrade-kernel-rt-develrocky-upgrade-kernel-rt-modulesrocky-upgrade-kernel-rt-modules-extrarocky-upgrade-kernel-toolsrocky-upgrade-kernel-tools-debuginforocky-upgrade-kernel-tools-libsrocky-upgrade-kernel-tools-libs-develrocky-upgrade-perfrocky-upgrade-perf-debuginforocky-upgrade-python3-perfrocky-upgrade-python3-perf-debuginfo | May 5, 2022 | Mar 4, 2022 | |
| Suse | — | suse-upgrade-cluster-md-kmp-64kbsuse-upgrade-cluster-md-kmp-azuresuse-upgrade-cluster-md-kmp-defaultsuse-upgrade-cluster-md-kmp-preemptsuse-upgrade-dlm-kmp-64kbsuse-upgrade-dlm-kmp-azuresuse-upgrade-dlm-kmp-defaultsuse-upgrade-dlm-kmp-preemptsuse-upgrade-dtb-alsuse-upgrade-dtb-allwinnersuse-upgrade-dtb-alterasuse-upgrade-dtb-amdsuse-upgrade-dtb-amlogicsuse-upgrade-dtb-apmsuse-upgrade-dtb-armsuse-upgrade-dtb-broadcomsuse-upgrade-dtb-caviumsuse-upgrade-dtb-exynossuse-upgrade-dtb-freescalesuse-upgrade-dtb-hisiliconsuse-upgrade-dtb-lgsuse-upgrade-dtb-marvellsuse-upgrade-dtb-mediateksuse-upgrade-dtb-nvidiasuse-upgrade-dtb-qcomsuse-upgrade-dtb-renesassuse-upgrade-dtb-rockchipsuse-upgrade-dtb-socionextsuse-upgrade-dtb-sprdsuse-upgrade-dtb-xilinxsuse-upgrade-dtb-ztesuse-upgrade-gfs2-kmp-64kbsuse-upgrade-gfs2-kmp-azuresuse-upgrade-gfs2-kmp-defaultsuse-upgrade-gfs2-kmp-preemptsuse-upgrade-kernel-64kbsuse-upgrade-kernel-64kb-develsuse-upgrade-kernel-64kb-extrasuse-upgrade-kernel-64kb-livepatch-develsuse-upgrade-kernel-64kb-optionalsuse-upgrade-kernel-azuresuse-upgrade-kernel-azure-basesuse-upgrade-kernel-azure-develsuse-upgrade-kernel-azure-extrasuse-upgrade-kernel-azure-livepatch-develsuse-upgrade-kernel-azure-optionalsuse-upgrade-kernel-debugsuse-upgrade-kernel-debug-basesuse-upgrade-kernel-debug-develsuse-upgrade-kernel-debug-livepatch-develsuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-basesuse-upgrade-kernel-default-base-rebuildsuse-upgrade-kernel-default-develsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-livepatchsuse-upgrade-kernel-default-livepatch-develsuse-upgrade-kernel-default-mansuse-upgrade-kernel-default-optionalsuse-upgrade-kernel-develsuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-docssuse-upgrade-kernel-docs-htmlsuse-upgrade-kernel-kvmsmallsuse-upgrade-kernel-kvmsmall-basesuse-upgrade-kernel-kvmsmall-develsuse-upgrade-kernel-kvmsmall-livepatch-develsuse-upgrade-kernel-macrossuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-obs-qasuse-upgrade-kernel-preemptsuse-upgrade-kernel-preempt-develsuse-upgrade-kernel-preempt-extrasuse-upgrade-kernel-preempt-livepatch-develsuse-upgrade-kernel-preempt-optionalsuse-upgrade-kernel-sourcesuse-upgrade-kernel-source-azuresuse-upgrade-kernel-source-vanillasuse-upgrade-kernel-symssuse-upgrade-kernel-syms-azuresuse-upgrade-kernel-vanillasuse-upgrade-kernel-vanilla-basesuse-upgrade-kernel-vanilla-develsuse-upgrade-kernel-vanilla-livepatch-develsuse-upgrade-kernel-zfcpdumpsuse-upgrade-kernel-zfcpdump-mansuse-upgrade-kselftests-kmp-64kbsuse-upgrade-kselftests-kmp-azuresuse-upgrade-kselftests-kmp-defaultsuse-upgrade-kselftests-kmp-preemptsuse-upgrade-ocfs2-kmp-64kbsuse-upgrade-ocfs2-kmp-azuresuse-upgrade-ocfs2-kmp-defaultsuse-upgrade-ocfs2-kmp-preemptsuse-upgrade-reiserfs-kmp-64kbsuse-upgrade-reiserfs-kmp-azuresuse-upgrade-reiserfs-kmp-defaultsuse-upgrade-reiserfs-kmp-preempt | Sep 16, 2021 | Aug 16, 2021 |
| Ubuntu | ubuntu-upgrade-linux-image-4-15-0-1027-dell300xubuntu-upgrade-linux-image-4-15-0-1080-oracleubuntu-upgrade-linux-image-4-15-0-1099-kvmubuntu-upgrade-linux-image-4-15-0-1108-gcpubuntu-upgrade-linux-image-4-15-0-1111-awsubuntu-upgrade-linux-image-4-15-0-1112-snapdragonubuntu-upgrade-linux-image-4-15-0-1123-azureubuntu-upgrade-linux-image-4-15-0-156-genericubuntu-upgrade-linux-image-4-15-0-156-generic-lpaeubuntu-upgrade-linux-image-4-15-0-156-lowlatencyubuntu-upgrade-linux-image-5-10-0-1045-oemubuntu-upgrade-linux-image-5-11-0-1015-azureubuntu-upgrade-linux-image-5-11-0-1015-kvmubuntu-upgrade-linux-image-5-11-0-1017-awsubuntu-upgrade-linux-image-5-11-0-1017-oracleubuntu-upgrade-linux-image-5-11-0-1017-raspiubuntu-upgrade-linux-image-5-11-0-1017-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-1018-gcpubuntu-upgrade-linux-image-5-11-0-34-genericubuntu-upgrade-linux-image-5-11-0-34-generic-64kubuntu-upgrade-linux-image-5-11-0-34-generic-lpaeubuntu-upgrade-linux-image-5-11-0-34-lowlatencyubuntu-upgrade-linux-image-5-13-0-1012-oemubuntu-upgrade-linux-image-5-4-0-1023-gkeopubuntu-upgrade-linux-image-5-4-0-1046-kvmubuntu-upgrade-linux-image-5-4-0-1052-gcpubuntu-upgrade-linux-image-5-4-0-1052-gkeubuntu-upgrade-linux-image-5-4-0-1054-oracleubuntu-upgrade-linux-image-5-4-0-1056-awsubuntu-upgrade-linux-image-5-4-0-1058-azureubuntu-upgrade-linux-image-5-4-0-84-genericubuntu-upgrade-linux-image-5-4-0-84-generic-lpaeubuntu-upgrade-linux-image-5-4-0-84-lowlatencyubuntu-upgrade-linux-image-5-8-0-1041-azureubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04 | Sep 9, 2021 | Aug 16, 2021 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Mar 4, 2022 |
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