Hotfix XS80E002 for Citrix Hypervisor 8.0

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.0. All customers who are affected by the issues described inCTX256725 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. Information About this Hotfix Component| Details ---|---...

Hotfix XS81E004 - For Citrix Hypervisor 8.1

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.1. All customers who are affected by the issues described inCTX275165 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. Note: Ensure that you use XenCenter 8.1.2 or later to install...

Hotfix XS80E014 - For Citrix Hypervisor 8.0

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.0. All customers who are affected by the issues described inCTX280451 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. Note: This hotfix is available only to customers on theCustomer...

Hotfix XS80E005 - For Citrix Hypervisor 8.0

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.0. All customers who are affected by the issues described inCTX263477 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. Ensure that you also installCTX258428 - Hotfix XS80E006 - For...

XenCenter 8.1.2 - For Citrix Hypervisor 8.1

Who Should Install This Update? This XenCenter update is for customers who use XenCenter as the management console for Citrix Hypervisor 8.1.0 or an earlier CR. It constitutes the following deliverable: File Name| XenCenter.msi ---|--- Description| This file updates the XenCenter installation on...

Enable mitigations for CVE-2018-12207

Depending on your hardware, your Citrix Hypervisor or XenServer installation may be affected by the security issue with the identifierCVE-2018-12207. Citrix provides the following hotfixes to mitigate this issue: XS70E075, XS71ECU2024, XS76E012,XS80E008. For more information, seeCitrix Hypervisor...

Hotfix XS80E008 - For Citrix Hypervisor 8.0

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.0. All customers who are affected by the issues described inCTX263684 - Citrix Hypervisor Multiple Security Updatesshould install this hotfix. The mitigation for CVE-2018-12207 is disabled by default. You...

Citrix Hypervisor Security Update

Description of Problem A security issue has been identified in Citrix Hypervisor that may allow privileged code running in a guest VM to infer details of some computations occurring in other VMs on the host. This may, for example, be used to infer a secret encryption key used by a web server in a...

Several vulnerabilities fixed in Citrix Hypervisor and XenDesktop

Citrix has fixed vulnerabilities in XenDesktop and Hypervisor. The vulnerabilities in XenDesktop allow a malicious party to to gain elevated privileges on a virtual Windows environment and execute code with SYSTEM privileges. The vulnerability in Hypervisor allows a remote malicious person to abl...

Vulnerabilities fixed in Citrix Hypervisor

Vulnerabilities have been fixed in Citrix Hypervisor. The vulnerabilities allow a malicious party to cause a denial-of-service DoS or to execute arbitrary code execute arbitrary code under the application's privileges. Citrix has released updates to fix the vulnerabilities in Hypervisor. For more...

Citrix Hypervisor Security Update

Description of Problem Two issues have been identified in Citrix Hypervisor that may, if exploited, allow privileged code in an HVM guest VM to compromise or crash the host. These issues only apply in specific configurations; furthermore, Citrix believes that there would be significant difficulty...

Citrix Hypervisor Security Update

Description of Problem Two issues have been identified in Citrix Hypervisor that may, in certain configurations, allow privileged code in an HVM guest VM to execute code in the control domain, potentially compromising the host. These vulnerabilities affect all currently supported versions of Citr...

Citrix Hypervisor Security Update

Description of Problem Several security issues have been identified in Citrix Hypervisor formerly Citrix XenServer that may allow: unprivileged code in a PV guest VM to compromise that PV guest VM privileged code in a guest VM to cause the host to crash or become unresponsive privileged code in a...

Citrix Hypervisor Security Update

Description of Problem An issue has been discovered in Citrix Hypervisor that, if exploited, could potentially allow an attacker on the management network to enumerate valid administrative account usernames. Note that this attack does not disclose the corresponding passwords and does grant not...

Citrix Hypervisor Security Update

Description of Problem Several security issues have been identified in Citrix Hypervisor formerly Citrix XenServer that may allow privileged code in a guest VM to cause the host to crash or become unresponsive. In addition, unprivileged code in a PV guest VM may be able to cause that guest VM to...

How to Install and Configure License server VPX on Hypervisor

Note: Citrix Hypervisor formerly XenServer...

How to Use OpenSSL with a Windows Certificate Authority to Generate TLS Certificates to use with XenServer

This article describes how to create a certificate using OpenSSL in combination with a Windows Certificate Authority that can be used with aXenServer 7.1 CU2 or XenServer 7.0 host To enable trusted TLScommunication betweenCitrix Hypervisor and Citrix Virtual Apps and Desktops, a trusted certifica...

Citrix Hypervisor Security Updates

Description of Problem Modern CPUs contain random number generators that provide entropy randomness to the software running on those processors to use for purposes such as generating cryptographic encryption keys. Software can obtain entropy by using the RDRAND and RDSEED instructions. A security...

Citrix Hypervisor Multiple Security Updates

Description of Problem Several issues have been identified within Citrix Hypervisor, which could, if exploited, allow: privileged code in a PV guest VM to read a single uninitialized 4kB page of memory that may contain data left by a previous VM privileged code in a guest VM to cause the host to...

Citrix Hypervisor Security Update

Description of Problem A number of vulnerabilities have been found in Citrix Hypervisor formerly Citrix XenServer that may: i. Allow the host to be compromised by privileged code in a PV guest VM, ii. allow unprivileged code in a HVM guest VM to cause that guest to crash and iii. under certain...