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A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 7, 2022 | Feb 18, 2022 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 18, 2022 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 7, 2022 | Feb 18, 2022 |
| Rocky_linux | — | Upgrade perfUpgrade kernel-cross-headersUpgrade kernel-tools-libs-develUpgrade kernelUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-debugUpgrade kernel-coreUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-debug-develUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-develUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-tools-libsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-coreUpgrade python3-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-debug-modulesUpgrade kernel-debug-debuginfo | Mar 5, 2024 | Feb 18, 2022 |
| Ubuntu | — | Upgrade linux-image-oem-20.04cUpgrade linux-image-5.11.0-1028-azureUpgrade linux-image-5.13.0-1016-raspi-nolpaeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-generic-64kUpgrade linux-image-raspiUpgrade linux-image-5.13.0-1029-oemUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-azureUpgrade linux-image-5.13.0-28-generic-lpaeUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-5.13.0-1016-raspiUpgrade linux-image-5.11.0-1029-gcpUpgrade linux-image-genericUpgrade linux-image-5.11.0-1028-oracleUpgrade linux-image-gkeUpgrade linux-image-5.13.0-1016-oracleUpgrade linux-image-5.13.0-28-lowlatencyUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.13.0-28-genericUpgrade linux-image-oracleUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.13.0-1013-gcpUpgrade linux-image-5.13.0-28-generic-64kUpgrade linux-image-kvmUpgrade linux-image-virtualUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.13.0-1011-kvmUpgrade linux-image-awsUpgrade linux-image-gcpUpgrade linux-image-5.13.0-1012-awsUpgrade linux-image-oem-20.04 | Feb 3, 2022 | Feb 3, 2022 |
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