GSD-2021-1001676 xen/x86: fix PV trap handling on secondary processors

xen/x86: fix PV trap handling on secondary processors This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.70 by commit...

[SECURITY] Fedora 34 Update: xen-4.14.3-2.fc34

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

[SECURITY] Fedora 33 Update: xen-4.14.3-2.fc33

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

The vulnerability of the cross-platform hypervisor Xen kernel in the Linux operating system, related to uncontrolled resource consumption, allows a perpetrator to trigger a service failure for dom0 or domain drivers.

The vulnerability of the cross-platform hypervisor Xen in the Linux operating system is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow an attacker to cause a failure in the dom0 service or the domain driver...

[SECURITY] Fedora 35 Update: xen-4.15.0-7.fc35

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

[SECURITY] Fedora 35 Update: xen-4.15.0-6.fc35

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

The vulnerability of the libxl__domain_suspend_state structure in Xen hypervisors lies in the lack of resource initialization, which allows attackers to trigger a service failure.

The vulnerability of the libxldomainsuspendstate structure in Xen hypervisors stems from the fact that this structure does not utilize the standard initialization and deallocation mechanism. Exploiting this vulnerability could allow an attacker to cause a service failure...

[SECURITY] Fedora 33 Update: xen-4.14.2-4.fc33

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

CVE-2021-28701

Another race in XENMAPSPACEgranttable handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches back from v2...

UBUNTU-CVE-2021-28701

Another race in XENMAPSPACEgranttable handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches back from v2...

Xen 竞争条件问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. A security vulnerability exists in Xen where...

[SECURITY] Fedora 34 Update: xen-4.14.2-3.fc34

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

PT-2021-6469 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to the handling of XENMAPSPACE grant table in the Xen hypervisor, where guests are allowed access to certain Xen-owned pages of memory. The majority of these pages remain...

DEBIAN-CVE-2021-28698

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones...

PT-2021-6805 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to improper authorization in the Xen hypervisor. Exploitation of this issue allows an attacker to access sensitive data, compromise its integrity, and cause a denial of...

PT-2021-6609 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to inadequate access control in the Xen hypervisor. Exploitation of this issue allows an attacker to access confidential data, compromise its integrity, and cause a denial ...

PT-2021-6824 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to the dom0less feature of the Xen hypervisor, which allows administrators to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit for...

Xen 竞争条件问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen has a security vulnerability that can be...

PT-2021-6468 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen affected versions not specified Description: The issue is related to weaknesses in the authentication procedure of the Xen hypervisor. Exploitation of this issue allows an attacker to access confidential data, compromise its integrity, an...

The vulnerability of the virtualization paravirtualization mode implementation in Xen hypervisors allows a malicious actor to gain unauthorized access to protected information.

The vulnerability of the PV mode implementation in Xen hypervisors relates to the use of the Indirect Branch Restricted Speculation IBRS mechanism for indirect branch control. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...