5710 matches found
UBUNTU-CVE-2017-15594
An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service hypervisor crash or gain privileges because IDT settings are mishandled during CPU hotplugging...
CVE-2017-15589
CVE-2017-15589 affects the Xen hypervisor (up to 4.9.x) where intercepted I/O can cause a write from uninitialized hypervisor stack memory, enabling x86 HVM guests to obtain host data. Impact: partial confidentiality loss. Affected: Xen hypervisor on various Linux distros; Details across connecte...
CVE-2017-15595
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service unbounded recursion, stack consumption, and hypervisor crash or possibly gain privileges via crafted page-table stacking...
CVE-2017-15595
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service unbounded recursion, stack consumption, and hypervisor crash or possibly gain privileges via crafted page-table stacking...
CVE-2017-15589
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to obtain sensitive information from the host OS or an arbitrary guest OS because intercepted I/O operations can cause a write of data from uninitialized hypervisor stack memory...
CVE-2017-15592
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to cause a denial of service hypervisor crash or possibly gain privileges because self-linear shadow mappings are mishandled for translated guests...
CVE-2017-15592
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to cause a denial of service hypervisor crash or possibly gain privileges because self-linear shadow mappings are mishandled for translated guests...
CVE-2017-15590
An issue was discovered in Xen through 4.9.x allowing x86 guest OS users to cause a denial of service hypervisor crash or possibly gain privileges because MSI mapping was mishandled...
Xen: Multiple vulnerabilities
Background Xen is a bare-metal hypervisor. Description Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details. Impact A local attacker could escalate privileges, cause a Denial of Service condition, obtain sensitive information, or have othe...
Citrix XenServer Multiple Security Updates (CTX228867)
A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the...
xen information disclosure vulnerability (CNVD-2017-30248)
Xen is an open source virtual machine monitor developed by the Xen Project. Xen has an information disclosure vulnerability that can be exploited by attackers to obtain sensitive information...
xen memory leak vulnerability
Xen is an open source virtual machine monitor developed by the Xen Project. Xen suffers from a memory disclosure vulnerability that can be exploited by an attacker to cause a denial of service...
xen system memory access vulnerability
Xen is an open source virtual machine monitor developed by the Xen Project. The xen system has a memory access vulnerability that can be exploited by an attacker for elevation of privilege...
xen denial of service vulnerability (CNVD-2017-30247)
Xen is an open source virtual machine monitor developed by the Xen Project. Xen has a denial of service vulnerability that can be exploited by attackers to cause a denial of service...
xen elevation of privilege vulnerability (CNVD-2017-30243)
Xen is an open source virtual machine monitor developed by the Xen Project. Xen suffers from an elevation of privilege vulnerability. An attacker can exploit this vulnerability to gain elevated privileges...
x86: Incorrect handling of self-linear shadow mappings with translated guests
ISSUE DESCRIPTION The shadow pagetable code uses linear mappings to inspect and modify the shadow pagetables. A linear mapping which points back to itself is known as self-linear. For translated guests, the shadow linear mappings being in a separate address space are not intended to be self-linea...
multiple MSI mapping issues on x86
ISSUE DESCRIPTION Multiple issues exist with the setup of PCI MSI interrupts: - unprivileged guests were permitted access to devices not owned by them, in particular allowing them to disable MSI or MSI-X on any device - HVM guests can trigger a codepath intended only for PV guests - some failure...
hypervisor stack leak in x86 I/O intercept code
ISSUE DESCRIPTION Intercepted I/O operations may deal with less than a full machine word's worth of data. While read paths had been the subject of earlier XSAs and hence have been fixed, at least one write path was found where the data stored into an internal structure could contain bits from an...
How to configure console access on XenServer or Citrix Hypervisor
This article is for customers running Citrix Hypervisor or XenServer who want to configure serial console access to their XenServer hosts. In some support cases, serial console access to the XenServer host is required for debug purposes. The serial connection is to use with HyperTerminal or simil...
