CVE-2023-34320

Cortex-A77 cores r0p0 and r1p0 are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register PAREL1 in close...

The vulnerability of the Parallels Desktop Hypervisor Service allows a attacker to execute arbitrary code and gain elevated privileges.

The vulnerability of the Parallels Desktop Hypervisor Service is related to initialization errors. Exploiting this vulnerability allows an attacker to execute arbitrary code and increase their privileges...

The vulnerability of the IRQ Handler component in the Xen hypervisor allows a hacker to disclose protected information.

The vulnerability of the IRQ Handler component in the Xen hypervisor is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability can allow an attacker to disclose sensitive information that should be protected...

Fedora: Security Advisory for xen (FEDORA-2023-e62da41072)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

SUSE CVE-2023-20592

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 behavior of the CPU leading to a potential loss of guest virtual machine VM memory integrity...

[SECURITY] Fedora 37 Update: xen-4.16.5-4.fc37

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

Fedora: Security Advisory (FEDORA-2023-fa01e4c6ba)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

The vulnerability of platforms for server virtualization, such as Citrix Hypervisor and XenServer, arises from deficiencies in access control. This allows attackers to gain unauthorized access to protected information.

The vulnerability of Citrix Hypervisor and XenServer platform-related servers is related to deficiencies in access control. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

[SECURITY] Fedora 38 Update: xen-4.17.2-5.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-4.17.2-5.fc39

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

Xen: x86/AMD: Mismatch in IOMMU Quarantine Page Table Levels (XSA-445)

The current setup of quarantine page tables assumes that there are 4 page table levels, however the AMD-Vi IOMMU is configured with 3 page table levels for systems without RAM above the 512 GB boundary. Due to this level mismatch, the sink page the device gets read/write access to is no longer...

Memory Integrity Loss

amd64-microcode AMD CPU microcode patches is vulnerable to Memory Integrity Loss. The vulnerability is caused due to Improper or Unexpected behavior of the INVD instruction in some AMD CPUs. It can allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU...

AMD CPU Instruction Malpractice Vulnerability

AMD CPUs are a family of CPUs from AMD. The AMD CPUs suffer from an improper instruction vulnerability that stems from the fact that incorrect or unexpected behavior of the INVD instruction would allow an attacker with a malicious hypervisor to affect the cache line write-back behavior of the CPU...

Citrix Releases Security Updates for Citrix Hypervisor

Citrix has released security updates addressing vulnerabilities in Citrix Hypervisor 8.2 CU1 LTSR. A cyber threat actor could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Citrix Hypervisor Security Bulletin for...

SUSE CVE-2023-20519

A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity...

Vulnerabilities fixed in Citrix Hypervisor

Citrix has released an update to fix vulnerabilities in Citrix hypervisor. The vulnerability with reference CVE-2023-23583 allows a local malicious party to use a virtual guest system to compromise the host system via PCI passthrough. This vulnerability is only present when the vulnerable product...

Citrix Hypervisor Security Bulletin for CVE-2023-23583 and CVE-2023-46835

Description of Problem An issue has been discovered that affects Citrix Hypervisor 8.2 CU1 LTSR and may allow malicious privileged code in a guest VM to compromise an AMD-based host via a passed through PCI device CVE-2023-46835. In addition, Intel has disclosed a security issue affecting certain...

CVE-2023-20592

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. Mitigation...

CVE-2023-20592

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 behavior of the CPU leading to a potential loss of guest virtual machine VM memory integrity...

DEBIAN-CVE-2023-20592

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 behavior of the CPU leading to a potential loss of guest virtual machine VM memory integrity...