FIFO event channels control block related ordering

ISSUE DESCRIPTION Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. IMPACT Malicious or buggy guest kernels can mount a Denial of...

PT-2020-6149

Name of the Vulnerable Software and Affected Versions Xen versions prior to 4.14.x Description An issue was discovered in Xen where the recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the forme...

Fedora 31 : xen (2020-d46fe34349)

x86 pv: Crash when handling guest access to MSRMISCENABLE XSA-333, CVE-2020-25602 1881619 Missing unlock in XENMEMacquireresource error path XSA-334, CVE-2020-25598 1881616 race when migrating timers between x86 HVM vCPU-s XSA-336, CVE-2020-25604 1881618 PCI passthrough code reading back hardware...

CVE-2020-25604: Concurrent Execution using Shared Resource with Improper Synchronization

An issue was discovered in Xen through 4.14.x. There is a race condition when migrating timers between x86 HVM vCPUs. When migrating timers of x86 HVM guests between its vCPUs, the locking model used allows for a second vCPU of the same guest also operating on the timers to release a lock that it...

DEBIAN-CVE-2020-15564

An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOPregistervcpuinfo. The hypercall VCPUOPregistervcpuinfo is used by a guest to register a shared region with the hypervisor. The region will be mapped...

CVE-2020-15564

An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOPregistervcpuinfo. The hypercall VCPUOPregistervcpuinfo is used by a guest to register a shared region with the hypervisor. The region will be mapped...

ALPINE-CVE-2020-15564

An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOPregistervcpuinfo. The hypercall VCPUOPregistervcpuinfo is used by a guest to register a shared region with the hypervisor. The region will be mapped...

PT-2020-5907 · Xen +2 · Xen +2

Name of the Vulnerable Software and Affected Versions: Xen versions through 4.13.x Description: An issue in Xen allows Arm guest OS users to cause a hypervisor crash due to a missing alignment check in the VCPUOP register vcpu info hypercall. This hypercall is used by a guest to register a shared...

Updating vCPU in Nutanix prov scheme via Powershell, new machines are not getting the new setting

Tried to decrease the number of cores per vCPU in a Nutanix machine catalog. However, the new machines did not have the desired change...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1528)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE SLES12 Security Update : libvirt (SUSE-SU-2019:2227-2)

This update for libvirt fixes the following issues : Security issues fixed : CVE-2019-10161: Fixed virDomainSaveImageGetXMLDesc API which could accept a path parameter pointing anywhere on the system and potentially leading to execution of a malicious file with root privileges by libvirtd...

SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2019:2353-1)

This update for qemu fixes the following issues : Security issues fixed : CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. CVE-2019-12155: Security fix for NULL pointer dereference while releasing spice resources bsc1135902. CVE-2019-13164: Security fix fo...

SUSE-SU-2019:2353-1 Security update for qemu

This update for qemu fixes the following issues: Security issues fixed: - CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. - CVE-2019-12155: Security fix for null pointer dereference while releasing spice resources bsc1135902. - CVE-2019-13164: Security fi...

OPENSUSE-SU-2019:2059-1 Security update for qemu

This update for qemu fixes the following issues: Security issues fixed: - CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. - CVE-2019-12155: Security fix for null pointer dereference while releasing spice resources bsc1135902. - CVE-2019-13164: Security fi...

Security update for qemu (important)

openSUSE Security Update: Security update for qemu Announcement ID: openSUSE-SU-2019:2059-1 Rating: important References: 1079730 1098403 1111025 1119115 1134883 1135902 1136540 1136778 1140402 1143794 Cross-References: CVE-2019-12155 CVE-2019-13164 CVE-2019-14378 Affected Products: openSUSE Leap...

openSUSE Security Update : qemu (openSUSE-2019-2059)

This update for qemu fixes the following issues : Security issues fixed : - CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. - CVE-2019-12155: Security fix for NULL pointer dereference while releasing spice resources bsc1135902. - CVE-2019-13164: Security...

OPENSUSE-SU-2019:2041-1 Security update for qemu

This update for qemu fixes the following issues: Security issues fixed: - CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. - CVE-2019-12155: Security fix for null pointer dereference while releasing spice resources bsc1135902. - CVE-2019-13164: Security fi...

SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2019:2246-1)

This update for qemu fixes the following issues : Security issues fixed : CVE-2019-14378: Security fix for heap overflow in ipreass on big packet input bsc1143794. CVE-2019-12155: Security fix for NULL pointer dereference while releasing spice resources bsc1135902. CVE-2019-13164: Security fix fo...

SUSE-SU-2019:2227-2 Security update for libvirt

This update for libvirt fixes the following issues: Security issues fixed: - CVE-2019-10161: Fixed virDomainSaveImageGetXMLDesc API which could accept a path parameter pointing anywhere on the system and potentially leading to execution of a malicious file with root privileges by libvirtd...

SUSE-SU-2019:2227-1 Security update for libvirt

This update for libvirt fixes the following issues: Security issues fixed: - CVE-2019-10161: Fixed virDomainSaveImageGetXMLDesc API which could accept a path parameter pointing anywhere on the system and potentially leading to execution of a malicious file with root privileges by libvirtd...