Xen PCI Pass-Through Elevation of Privilege vulnerability (XSA-302)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an elevation of privilege vulnerability due to a memory corruption that may occur after a passed through PCI device is deassigned from an untrusted domain. An unauthenticated attacker wit...

ALPINE-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

DEBIAN-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

Design/Logic Flaw

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

UBUNTU-CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

CVE-2019-18424

Xen vulnerability CVE-2019-18424 affects the Xen hypervisor (4.12.x) where, when PCI pass-through is used, deassignment of a PCI device from an untrusted domain can allow in-flight DMA to target host memory, risking host-OS privilege escalation. The issue arises because devices reassigned to dom0...

CVE-2019-18424

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

CVE-2019-18424: Improper Neutralization of Special Elements used in an OS Command

An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to...

PT-2019-4887 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.13 Description: An issue in Xen allows attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt...

PT-2019-4891 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.11.x Description: The issue is caused by synchronization errors when using a shared resource, allowing an attacker to cause a denial of service or gain privileges by leveraging a page-writability race condition during...

Xen Project PCI Pass-through DMA Privilege Escalation (XSA-288)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a privilege escalation vulnerability. Only x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardwa...

Xen Project PCI Pass-through Device Denial of Service Vulnerability (XSA-291)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. Only x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware...

Fedora 29 : xen (2019-3e89502cb1)

xen: various flaws 1685577 grant table transfer issues on large hosts XSA-284 race with pass-through device hotplug XSA-285 x86: stealpage violates pagestruct access discipline XSA-287 x86: Inconsistent PV IOMMU discipline XSA-288 missing preemption in x86 PV page table unvalidation XSA-290 x86/P...

How to Deploy Citrix Receiver for Pass-Through Authentication Using Active Directory Group Policy

This article describes how to deploy and configure CitrixReceiver.exe so that it can be used in Pass-Through authentication mode in a XenApp or XenDesktop deployment. This article also provides a detailed step-by-step guide about deploying and configuring CitrixReciverEnterprise.exe onto a large...

x86: Inconsistent PV IOMMU discipline

ISSUE DESCRIPTION In order for a PV domain to set up DMA from a passed-through device to one of its pages, the page must be mapped in the IOMMU. On the other hand, before a PV page may be used as a "special" page type such as a pagetable or descriptor table, it must not be writable in the IOMMU...

Step 1. Identify users: top 10 actions to secure your environment

This series outlines the most fundamental steps you can take with your investment in Microsoft 365 security solutions. Well provide advice on activities such as setting up identity management through active directory, malware protection, and more. In this post, we explain how to create a single...

Design/Logic Flaw

When an SRX Series device is configured to use HTTP/HTTPS pass-through authentication services, a client sending authentication credentials in the initial HTTP/HTTPS session is at risk that these credentials may be captured during follow-on HTTP/HTTPS requests by a malicious actor through a...

CVE-2018-0025

When an SRX Series device is configured to use HTTP/HTTPS pass-through authentication services, a client sending authentication credentials in the initial HTTP/HTTPS session is at risk that these credentials may be captured during follow-on HTTP/HTTPS requests by a malicious actor through a...