535 matches found
Multiple Intel Processors CVE-2018-12207 Denial of Service Vulnerability
Description Multiple Intel Processors are prone to a denial of service vulnerability. An attacker can exploit this issue to cause a denial-of-service condition. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citrix XenServer 7.6 Intel 2nd generation...
Xen CVE-2019-18424 Privilege Escalation Vulnerability
Description Xen is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges on the affected system. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citrix XenServer 7.6 Xen Xen 3.2.0 Xen Xen 3.2.1...
Xen CVE-2019-18425 Privilege Escalation Vulnerability
Description Xen is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges, obtain sensitive information or cause denial-of-service conditions. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citr...
Xen CVE-2019-18421 Privilege Escalation Vulnerability
Description Xen is prone to a privilege-escalation vulnerability. An attacker can exploit this issue to gain elevated privileges, obtain sensitive information or cause denial-of-service conditions. Technologies Affected Citrix Hypervisor 8.0 Citrix XenServer 7.0 Citrix XenServer 7.1 LTSR CU2 Citr...
Collect a complete memory dump on a MCS (non-persistent) machine on XenServer (Citrix Hypervisor)
This article outlines the steps to collect complete memory dump on a MCS non-persistent machine on XenServer Citrix Hypervisor. Often we are not able to get the memory dump in instances where MCS provisioned VDAs show behaviors like unresponsiveness/hang. The reason being the machine fails to sav...
CVE-2014-3798
The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...
Design/Logic Flaw
The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...
CVE-2014-3798
The CVE concerns Citrix XenServer Windows Guest Tools (XenServer Tools) for Windows guests, with vulnerability in the xenvif-facing handling that allows a remote, unauthenticated attacker to crash the guest OS by sending specially crafted Ethernet frames. Affected versions include XenServer 6.2 S...
CVE-2014-3798
The Windows Guest Tools in Citrix XenServer 6.2 SP1 and earlier allows remote attackers to cause a denial of service guest OS crash via a crafted Ethernet frame...
Citrix XenServer Microarchitectural Data Sampling Speculative Side-Channel Vulnerabilities (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (CTX2251995)
The version of Citrix XenServer running on the remote host is missing a security hotfix. It is, therefore, affected by microarchitectural data sampling speculative side-channel vulnerabilities. These vulnerabilities may allow a local attacker on a guest machine to sample the contents of memory...
XenServer WLB - The connection was reset
When attempting to connecting a Pool to the WLB server, receiving an error "The connection to the WLB server was reset". The stunnel process is running and the WLB server was rebooted as a troubleshooting step, but the issue still occurs...
XenServer Hardware Compatibility List Explained
This article provides an understanding of the Hardware Compatibility List HCL for Citrix Hypervisor and XenServer. This article also contains information about how products get qualified for inclusion in the HCL and what listing in the HCL represents from a support perspective. Background The...
XenServer 7.1 WLB consultation has failed
WLB Consultation has failed messages seen on XenCenter...
Citrix XenServer Multiple Security Updates
Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer that, depending on configuration, may allow a malicious user of a PV guest VM to crash or compromise the host. These vulnerabilities affect all currently supported versions of Citrix XenServer up ...
Time not getting sync on XenServer with NTP
High NTP offset and jitter while delay is low. This can be seen with "ntpq -p". Offset is the time difference between the local server and remote Jitter is the difference between the last and current offset measurements, thus if it is high, it means that the offset is increasing more over time...
How to Remove a DVD Drive from a XenServer Virtual Machine
This article describes how to remove a DVD drive from a XenServer virtual machine...
How to Collect XenServer Guest VM Operation Log
This article explains how to collect XenServer guest vm operation log...
XenServer metadata restore failed "No valid Btrfs found on <metadata backup vdi path> Superblock bytenr is larger than device size <vm import command>
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