CVE-2021-47008

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEXIT path and it is known that the GHCB will be mapped. But there are two paths where it is possible the GHCB might not be mapped. The...

UBUNTU-CVE-2021-47008

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEXIT path and it is known that the GHCB will be mapped. But there are two paths where it is possible the GHCB might not be mapped. The...

x86: shadow stack vs exceptions from emulation stubs

ISSUE DESCRIPTION Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and...

hw: amd: INVD instruction may lead to a loss of SEV-ES guest machine memory integrity problem

A flaw was found in some of AMD CPU's due to improper or unexpected behavior of the INVD. This issue may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU, potentially leading to a loss of guest virtual machine VM memory integrity...

PT-2024-13384 · Xen +2 · Xen +2

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to the interaction between the Control-flow Enforcement Technology CET and the Xen emulation. CET is a hardware feature designed to protect against Return Oriented...

Driver Disk for Cisco fnic 2.0.0.90-252.0 - For Citrix Hypervisor 8.2 LTSR

Who should install this driver disk? Customers running the Citrix Hypervisor 8.2 Cumulative Update 1 LTSR release who use Cisco's fnic driver and wish to use the latest version of the following: Driver Module| Driver Type| Version ---|---|--- fnic| FC and NVME HBA Driver/| 2.0.0.90-252.0 Issues...

hw: amd: INVD instruction may lead to a loss of SEV-ES guest machine memory integrity problem

A flaw was found in some of AMD CPU's due to improper or unexpected behavior of the INVD. This issue may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU, potentially leading to a loss of guest virtual machine VM memory integrity...

Driver Disk for Cisco enic 4.5.0.7-939.23 - For Citrix Hypervisor 8.2 LTSR

Who should install this driver disk? Customers running the Citrix Hypervisor 8.2 Cumulative Update 1 LTSR release who use Cisco's enic driver and wish to use the latest version of the following: Driver Module| Driver Type| Version ---|---|--- enic| Ethernet/NIC| 4.5.0.7-939.23 Issues resolved in...

[SECURITY] Fedora 39 Update: qemu-8.1.3-3.fc39

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...

IBM PowerVM Hypervisor Information Disclosure Vulnerability (CNVD-2024-09173)

IBM PowerVM Hypervisor is an application from International Business Machines IBM, Inc. Providing a secure and scalable virtualized environment, these applications are built on the advanced RAS capabilities and leading performance of the Power Systems platform. An information disclosure...

Fedora: Security Advisory (FEDORA-2024-c601293124)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

IBM PowerVM Hypervisor Information Disclosure Vulnerability (CNVD-2024-09171)

IBM PowerVM Hypervisor is an application from International Business Machines IBM, Inc. Providing a secure and scalable virtualized environment, these applications are built on the advanced RAS capabilities and leading performance of the Power Systems platform. An information disclosure...

App Layering - Set Static MAC Address on a Packaging Machine

By default an App layering packaging machine will use DHCP to assign an IP address. There is no built in mechanism to change this behavior to use a statically assigned IP. To work around this, a manually assigned MAC address can be set on a VM Template in your hypervisor. Then an IP address can b...

[SECURITY] Fedora 38 Update: xen-4.17.2-6.fc38

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 39 Update: xen-4.17.2-6.fc39

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

Fedora: Security Advisory for xen (FEDORA-2024-4b2cf8c375)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

Fedora: Security Advisory (FEDORA-2024-e527e6fd08)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

hw: amd: INVD instruction may lead to a loss of SEV-ES guest machine memory integrity problem

A flaw was found in some of AMD CPU's due to improper or unexpected behavior of the INVD. This issue may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU, potentially leading to a loss of guest virtual machine VM memory integrity...

CentOS 7 : linux-firmware (RHSA-2024:0753)

The remote CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:0753 advisory. - Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back...

USN-6624-1 linux, linux-aws, linux-gcp, linux-hwe-6.5, linux-laptop, linux-lowlatency, linux-lowlatency-hwe-6.5, linux-oem-6.5, linux-oracle, linux-raspi, linux-starfive vulnerabilities

Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service paravirtualized device unavailability. CVE-2023-34324 Zheng Wang discovered...