CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

Design/Logic Flaw

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

Missing p2m error checking in PoD code

ISSUE DESCRIPTION Certain actions require modification of entries in a guest's P2M Physical-to-Machine table. When large pages are in use for this table, such an operation may incur a memory allocation to replace a large mapping with individual smaller ones. If this allocation fails, the...

CVE-2017-17045: Use After Free

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service BUG and host OS crash by leveraging the mishandling of Populate on Demand PoD Physical-to-Machine P2M errors...

CVE-2017-10918: Improper Input Validation

Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222...

Citrix XenServer Multiple Vulnerabilities (CTX224740)

The version of Citrix XenServer installed on the remote host is missing a security hotfix. It is, therefore, affected by multiple vulnerabilities : - A flaw exists that causes grant table operations to fail due to improper handling of reference counts. An unauthenticated, remote attacker can...

stale P2M mappings due to insufficient error checking

ISSUE DESCRIPTION Certain actions require removing pages from a guest's P2M Physical-to-Machine mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation to replace a large mapping with individual smaller ones. If...

DEBIAN-CVE-2016-5242

The p2mteardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service NULL pointer dereference and host OS crash by creating concurrent domains and holding references to them, related to VMID exhaustion...

UBUNTU-CVE-2016-5242

The p2mteardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service NULL pointer dereference and host OS crash by creating concurrent domains and holding references to them, related to VMID exhaustion...

Xen Denial of Service Vulnerability (CNVD-2015-07243)

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. A security vulnerability exists in the 'p2mpodemergencysweep' function in Xen's arch/x86/mm/p2m-pod.c file. A local attacker could exploit this vulnerability to cause a denial of...

PT-2015-7683

Name of the Vulnerable Software and Affected Versions Xen versions 3.4.x through 3.6.x Description The issue is related to the p2m pod emergency sweep function in Xen, which is not preemptible. This allows local x86 HVM guest administrators to cause a denial of service by consuming CPU resources...

Fedora 19 : xen-4.2.4-4.fc19 (2014-5941)

HVMOPsetmemtype allows invalid P2M entries to be created Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issue...

kernel: xen: Memory mapping failure can crash Xen

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the setp2mentry function fails, which allows local HVM guest OS administrators to cause a denial of service memory consumption and assertion failure, aka "Memory mapping failure DoS...

CVE-2012-3433

Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service domain 0 VCPU hang and kernel panic by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown...

CVE-2012-3433: Undefined Security Weakness

Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service domain 0 VCPU hang and kernel panic by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown...

Fedora 17 : xen-4.1.3-6.fc17 (2012-18242)

A guest can block a cpu by setting a bad VCPU deadline XSA 20, CVE-2012-4535 876198 HVM guest can use invalid pirq values to crash xen XSA 21, CVE-2012-4536 876200 HVM guest can exhaust p2m table crashing xen XSA 22, CVE-2012-4537 876203 PAE HVM guest can crash hypervisor XSA-23, CVE-2012-4538...

Fedora 16 : xen-4.1.3-4.fc16 (2012-18249)

A guest can block a cpu by setting a bad VCPU deadline XSA 20, CVE-2012-4535 876198 HVM guest can use invalid pirq values to crash xen XSA 21, CVE-2012-4536 876200 HVM guest can exhaust p2m table crashing xen XSA 22, CVE-2012-4537 876203 PAE HVM guest can crash hypervisor XSA-23, CVE-2012-4538...