639 matches found
PT-2025-8492
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.17.0-rc3+ Description A vulnerability in the Linux kernel has been identified, specifically in the KVM Kernel-based Virtual Machine component for x86 architecture. The issue arises from the handling of triple...
EulerOS 2.0 SP5 : kernel (EulerOS-SA-2022-1328)
According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In unixscmtoskb of afunix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege wi...
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.
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CVE-2021-3656
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...
CVE-2021-3656
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...
DEBIAN-CVE-2021-3656
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...
CVE-2021-3656
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...
Input validation
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...
CVE-2021-3656
CVE-2021-3656 describes a flaw in the KVM hypervisor for AMD processors where the L1 guest can provide a VMCB with an improperly validated virt_ext field, allowing the L1 to disable VMLOAD/VMSAVE intercepts and VLS for the L2 guest. This enables the L2 guest to read/write portions of the host’s p...
CVE-2021-3656
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...
CVE-2021-3656
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...
CVE-2021-3656
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...
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...
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...
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...
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...
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 ...
Mageia: Security Advisory (MGASA-2020-0110)
The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...