CVE-2021-4093

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...

Out-of-bounds

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...

CVE-2021-4093

CVE-2021-4093 : A flaw in the KVM AMD SEV-ES code allows a malicious VM using SEV-ES to trigger out-of-bounds reads/writes in the host kernel via a VMGEXIT with a string I/O instruction (e.g., outs/ins) using exit reason SVM_EXIT_IOIO. This can crash the host or enable a guest-to-host escape. Aff...

CVE-2021-4093

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...

CVE-2021-4093

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...

CVE-2021-4093

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...

PT-2022-28525

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.19 Description The issue concerns the KVM LAPIC, where the preemption timer is not properly canceled during SET LAPIC. The actual impact and attack plausibility have not yet been proven. Recommendations For...

PT-2022-28538

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.19 Description The issue concerns the use of mm ops indirection for cache maintenance in the KVM arm64 pkvm. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux...

PT-2022-28526

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.19 Description The issue is related to KVM x86 and forcibly leaving nested virtualization when the SMM state is toggled. The actual impact and attack plausibility have not yet been proven. Recommendations F...

CVE-2021-4093: Out-of-bounds Read

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...

PT-2022-28466

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to 5.10.97 Description The issue is related to KVM x86, where the system forcibly leaves nested virtualization when the SMM state is toggled. The actual impact and attack plausibility have not yet been proven...

[SECURITY] Fedora 35 Update: qemu-6.1.0-14.fc35

qemu is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its associated peripherals...

Unbreakable Enterprise kernel security update

5.4.17-2136.304.4.1 - Revert rds/ib: Kernel upgrade to rdsibconns info displayed by rds-info Rohit Nair Orabug: 33832625 - cgroup-v1: Require capabilities to set releaseagent Eric W. Biederman Orabug: 33832582 CVE-2022-0492 5.4.17-2136.304.4 - scsi: libiscsi: Fix iscsitask use after free Mike...

Unbreakable Enterprise kernel-container security update

5.4.17-2136.304.4.1 - Revert rds/ib: Kernel upgrade to rdsibconns info displayed by rds-info Rohit Nair Orabug: 33832625 - cgroup-v1: Require capabilities to set releaseagent Eric W. Biederman Orabug: 33832582 CVE-2022-0492 5.4.17-2136.304.4 - scsi: libiscsi: Fix iscsitask use after free Mike...

PT-2025-7950

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been identified, specifically in the KVM Kernel-based Virtual Machine component. The issue arises when unmapping a GFN Guest Frame Number range in...

AlmaLinux 8 : kernel (ALSA-2021:3548)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:3548 advisory. - 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 ...

Rocky Linux 8 : kernel (RLSA-2021:3057)

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:3057 advisory. - An issue was discovered in Linux: KVM through Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed...

The vulnerability of the Linux operating system’s kernel, related to deficiencies in access control, allows attackers to escalate their privileges.

The vulnerability of the Linux operating system’s kernel is related to improperly applied security restrictions in the KVM AMD code, which is used to support embedded virtualization within SVM. Exploiting this vulnerability can allow attackers to increase their privileges...

PT-2022-7459

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a potential NULL dereference on nested migration in the KVM component of the Linux kernel, specifically in the nSVM functionality. This is caused by the nested sv...

QEMU Monitor HMP migrate Command Execution

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule "QEMU Monitor HMP 'migrate' Command Execution", 'Description' = %q This module uses QEMU's Monitor Human Monitor Interface HMP TCP server to execu...