DEBIAN-CVE-2019-19582

An issue was discovered in Xen through 4.12.x allowing x86 guest OS users to cause a denial of service infinite loop because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which...

UBUNTU-CVE-2019-19577

An issue was discovered in Xen through 4.12.x allowing x86 AMD HVM guest OS users to cause a denial of service or possibly gain privileges by triggering data-structure access during pagetable-height updates. When running on AMD systems with an IOMMU, Xen attempted to dynamically adapt the number ...

DEBIAN-CVE-2019-19579

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 and assignable-add is not used, because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's...

[SECURITY] Fedora 31 Update: xen-4.12.1-7.fc31

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

Xen Restartable PV Type Change Operations Elevation of Privilege Vulnerability (XSA-299)

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 race conditions in the pagetable promotion and demotion operations. An authenticated, remote attacker can exploit this issue, by triggering...

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-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled...

CVE-2019-18423

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service via a XENMEMaddtophysmap hypercall. p2m-maxmappedgfn is used by the functions p2mresolvetranslationfault and p2mgetentry to sanity check guest physical frame. The rest of the code in the two...

UBUNTU-CVE-2019-18423

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service via a XENMEMaddtophysmap hypercall. p2m-maxmappedgfn is used by the functions p2mresolvetranslationfault and p2mgetentry to sanity check guest physical frame. The rest of the code in the two...

PT-2019-4885 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.13 Description: An issue in Xen allows ARM guest OS users to cause a denial of service via a XENMEM add to physmap hypercall. The functions p2m resolve translation fault and p2m get entry use p2m-max mapped gfn to sani...

PT-2019-4839 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions 3.2 through 4.12.x Description: The issue is related to an error in the x86 PV emulation of the Xen hypervisor, specifically a missing check for the descriptor table limit. This could allow a remote attacker to access confidentia...

The vulnerability of Xen hypervisors, related to errors in number processing, allows attackers to gain unauthorized access to information.

The vulnerability of Xen hypervisors is related to an error in number processing. Exploiting this vulnerability can allow an attacker to gain unauthorized access to information...

[SECURITY] [DLA 1949-1] xen security update

Package : xen Version : 4.4.4lts5-0+deb8u1 CVE ID : CVE-2018-19961 CVE-2018-19962 CVE-2018-19966 XSA ID : XSA-275 XSA-280 XSA-285 XSA-287 XSA-288 Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, informations leaks or privilege escalatio...

DEBIAN-CVE-2019-17342

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a race condition that arose when XENMEMexchange was introduced...

DEBIAN-CVE-2019-17341

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a page-writability race condition during addition of a passed-through PCI device...

ALPINE-CVE-2019-17345

An issue was discovered in Xen 4.8.x through 4.11.x allowing x86 PV guest OS users to cause a denial of service because mishandling of failed IOMMU operations causes a bug check during the cleanup of a crashed guest...

Xen Denial of Service Vulnerability (CNVD-2019-34766)

Xen is an open source virtual machine monitor product. Xen has a denial of service vulnerability that can be exploited by attackers to cause a denial of service infinite loop...

PT-2019-5144 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.11.x Description: The issue is related to an incompatibility between Process Context Identifiers PCID and shadow-pagetable switching, allowing x86 PV guest OS users to cause a denial of service. This is due to a lack o...

PT-2019-5146 · Xen · Xen

Name of the Vulnerable Software and Affected Versions: Xen versions prior to 4.13 Description: An issue in Xen allows Arm domU attackers to cause a denial of service through an infinite loop involving a compare-and-exchange operation. This can be exploited to disrupt service. Recommendations: For...

CVE-2019-12491

OnApp before 5.0.0-88, 5.5.0-93, and 6.0.0-196 allows an attacker to run arbitrary commands with root privileges on servers managed by OnApp for XEN/KVM hypervisors. To exploit the vulnerability an attacker has to have control of a single server on a given cloud e.g. by renting one. From the sour...