Xen IRQ Vector Leak DoS (XSA-360)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service DoS vulnerability. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X...

Identity at Microsoft Ignite: Strengthening Zero Trust defenses in the era of hybrid work

We’re now a year into our new reality, and two trends stand out. First, people need even more flexibility as we work, learn, and collaborate in a world without perimeters. And second, bad actors are getting even more sophisticated. They’re adding new attack vectors and combining them in new...

Identity at Microsoft Ignite: Strengthening Zero Trust defenses in the era of hybrid work

We’re now a year into our new reality, and two trends stand out. First, people need even more flexibility as we work, learn, and collaborate in a world without perimeters. And second, bad actors are getting even more sophisticated. They’re adding new attack vectors and combining them in new...

Exploit for CVE-2020-1472

ZeroLogon - Exploit and Example Modified the test PoC from Se...

Code Execution Vulnerability in 1039 Inc.'s Homeschooling

Beijing One Zero Three Nine Technology Development Co., Ltd 1039 Company for short is a technology enterprise specializing in standardized software development and large-scale applied platform for the training industry, and is a partner in the information construction of the training industry. A...

Denial Of Service (DoS)

Xen is vulnerable to Denial of Service DoS. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI-X entries that the...

Troubleshooting Citrix Pass-Through Authentication

This article outlines workarounds and resolutions to specific Citrix pass-through authentication issues. Common Pass-Through Authentication Issues and Inquiries Refer to the following links for information on common pass-through authentication issues and inquiries: Citrix Docs - Enabling...

CVE-2021-21286

AVideo Platform is an open-source Audio and Video platform. It is similar to a self-hosted YouTube. In AVideo Platform before version 10.2 there is an authorization bypass vulnerability which enables an ordinary user to get admin control. This is fixed in version 10.2. All queries now remove the...

CVE-2021-21286

AVideo Platform is an open-source Audio and Video platform. It is similar to a self-hosted YouTube. In AVideo Platform before version 10.2 there is an authorization bypass vulnerability which enables an ordinary user to get admin control. This is fixed in version 10.2. All queries now remove the...

CVE-2021-21286

AVideo Platform is an open-source Audio and Video platform. It is similar to a self-hosted YouTube. In AVideo Platform before version 10.2 there is an authorization bypass vulnerability which enables an ordinary user to get admin control. This is fixed in version 10.2. All queries now remove the...

CVE-2021-21286 Authorization Bypass in AVideo Platform

AVideo Platform is an open-source Audio and Video platform. It is similar to a self-hosted YouTube. In AVideo Platform before version 10.2 there is an authorization bypass vulnerability which enables an ordinary user to get admin control. This is fixed in version 10.2. All queries now remove the...

CVE-2021-21286: Incorrect Authorization

AVideo Platform is an open-source Audio and Video platform. It is similar to a self-hosted YouTube. In AVideo Platform before version 10.2 there is an authorization bypass vulnerability which enables an ordinary user to get admin control. This is fixed in version 10.2. All queries now remove the...

Fedora 32 : xen (2021-16c9c40d4d)

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-16c9c40d4d advisory. - An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

Code injection

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

CVE-2021-3308

CVE-2021-3308 affects the Xen hypervisor (notably Xen 4.12.3–4.12.4 and 4.13.1–4.14.x). An x86 HVM guest with PCI passthrough can reboot with MSI/MSI-X enabled to exhaust all IDT vectors, leaking MSI(-X) entries and causing a DoS for PCI devices across guests or the host. The issue is triggered b...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...

CVE-2021-3308

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors...