CVE-2021-3656: Missing Authorization

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 "virtext" field, this issue could allow a malicious...

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.

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Windows Hyper-V DoS

The vulnerability of the Windows Hyper-V hardware virtualization system is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a perpetrator to cause service interruptions...

Security Bulletin: Multiple Vulnerabilities in IBM Java SDK affect IBM Virtualization Engine TS7700 - October 2021

Summary There are multiple vulnerabilities in IBM® SDK Java™ Technology Edition, Version 8, as used by IBM Virtualization Engine TS7700. These issues were disclosed as part of the IBM Java SDK updates in October 2021. IBM Virtualization Engine TS7700 has addressed the applicable CVEs. Vulnerabili...

DRAKVUF Sandbox - Automated Hypervisor-Level Malware Analysis System

DRAKVUF Sandbox is an automated black-box malware analysis system with DRAKVUF engine under the hood, which does not require an agent on guest OS. This project provides you with a friendly web interface that allows you to upload suspicious files to be analyzed. Once the sandboxing job is finished...

PT-2022-28886

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to 5.16.5 Description The issue is related to KVM x86 and nested virtualization, specifically when the SMM state is toggled. The actual impact and attack plausibility have not yet been proven. Recommendations For...

From Pet Systems to Cattle Farm — What Happened to the Data Center?

There's something about craftsmanship. It's personal, its artistry, and it can be incredibly effective in achieving its goals. On the other hand, mass-market production can be effective in other ways, through speed, efficiency, and cost savings. The story of data centers is one of going from...

GSD-2022-1000188 KVM: x86: Forcibly leave nested virt when SMM state is toggled

KVM: x86: Forcibly leave nested virt when SMM state is toggled This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.97 by commit...

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...

DEBIAN-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...

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...

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...

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...

VMware Fusion 12.0.x < 12.2.1 Multiple Vulnerabilities (VMSA-2022-0004)

The version of VMware Fusion installed on the remote macOS or Mac OS X host is 12.0.x prior to 12.2.1. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number...

VMware Workstation 16.0.x < 16.2.1 Multiple Vulnerabilities (VMSA-2022-0004)

The version of VMware Workstation installed on the remote host is 16.0.x prior to 16.2.1. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number. %NASLMINLEVEL 70300 C...

VMware XHCI Controller Code Execution

The vulnerability of the XHCI controllers in VMware ESXi, VMware Workstation, VMware Fusion, and the VMware Cloud Foundation virtualization platform relates to the use of memory after deallocation. Exploiting this vulnerability allows an attacker to execute arbitrary code remotely...

CD-ROM-based hypervisor Emulation Code Execution

The vulnerability of CD-ROM emulation devices in VMware ESXi, VMware Workstation, and VMware Fusion lies in the writing beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to execute arbitrary code...