Xen Hypervisor DoS

The vulnerability of Xen hypervisors relates to the provision of unlimited memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

Oxenstored Xen Hypervisor DoS

The vulnerability of the Oxenstored hypervisor in Xen relates to the allocation of unlimited memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

Hotfix XS82E025 - For Citrix Hypervisor 8.2

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2. All customers who are affected by the issues described inCTX316325 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. Information About this Hotfix Component| Details ---|---...

Driver Disk for Avago mpt3sas 38.00.00.00 - For Citrix Hypervisor 8.2 LTSR

Who Should Install this Driver Disk? Customers running the Citrix Hypervisor 8.2 LTSR release who use Avago's mpt3sas driver and wish to use the latest version of the following: Driver Module| Version ---|--- mpt3sas| 38.00.00.00 Issues Resolved In this Driver Disk Includes general enhancements a...

Hotfix XS82E028 - For Citrix Hypervisor 8.2

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2. Information About this Hotfix Component| Details ---|--- Prerequisite| None Post-update tasks| None Content live patchable| No Baselines for Live Patch| N/A Revision History| Published on Jun 21, 2021...

Citrix Hypervisor 8.2 unable to load 2nd HBA card

Jun 4 15:46:50 hostname kernel: 75.692775 xen: -- pirq=85 - irq=85 gsi=85Jun 4 15:46:50 hostname kernel: 75.692987 Failed to setup GSI :85, errcode:-28Jun 4 15:46:50 hostname kernel: 75.928523 lpfc 0000:87:00.1: 3:6101 Disabling NVME support: Not supported by firmware: 1 1Jun 4 15:46:50 hostname...

[SECURITY] Fedora 33 Update: xen-4.14.2-2.fc33

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

Debian: Security Advisory (DSA-4931-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 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...

[SECURITY] Fedora 34 Update: xen-4.14.2-2.fc34

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

Debian DSA-4931-1 : xen - security update

Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service or information leaks. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debian Security Advisory DSA-4931. The...

TLB Poisoning Attacks on AMD Secure Encrypted Virtualization (SEV)

Bulletin ID: AMD-SB-1023 Potential Impact: Loss of Integrity, Confidentiality and Availability Summary A malicious hypervisor HV along with an unprivileged process controlled by an attacker and executing in a guest VM, may maliciously control the process of flushing the Translation Lookaside Buff...

CVE-2021-28687

HVM soft-reset crashes toolstack libxl requires all data structures passed across its public interface to be initialized before use and disposed of afterwards by calling a specific set of functions. Many internal data structures also require this initialize / dispose discipline, but not all of...

How to Migrate GEN2 Hyper-V Machines to Citrix Hypervisor

Migrate VMs from Hyper-v to Xenserver/Citrix Hypervisor...

Are Virtual Machines the New Gold for Cyber Criminals?

ARCHIVED STORY Are Virtual Machines the New Gold for Cyber Criminals? ATR Operational Intelligence Team · JUN 10, 2021 Introduction Virtualization technology has been an IT cornerstone for organization for years now. It revolutionized the way organizations can scale up IT systems in a heartbeat,...

Are Virtual Machines the New Gold for Cyber Criminals?

ARCHIVED STORY Are Virtual Machines the New Gold for Cyber Criminals? ATR Operational Intelligence Team · JUN 10, 2021 Introduction Virtualization technology has been an IT cornerstone for organization for years now. It revolutionized the way organizations can scale up IT systems in a heartbeat,...

SUSE SLES11 Security Update : xen (SUSE-SU-2020:14444-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14444-1 advisory. - Improper invalidation for page table updates by a virtual guest operating system for multiple IntelR Processors may allow an authenticated...

Citrix Hypervisor Security Update

Several security issues have been identified that affect Citrix Hypervisor: Two issues, each of which may each allow privileged code in a guest VM to cause the host to crash or become unresponsive. These two issues only affect systems where the malicious guest VM has a physical PCI device passed...

CVE-2021-26314

Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage...

SUSE: Security Advisory (SUSE-SU-2019:2961-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

Citrix Hypervisor 8.2 : xe-toolstack-restart causes the PVS VMs to go into PowerState Unknown.

PVS VMs may showPowerState Unknown inCitrix Studio when the toolstack is restarted on the XenServer Hypervisor hosting the VMs. Currently logged in sessions will be unaffected however any new user trying to log may encounter an error as the site is unable to determine if any VMs are powered on an...