CVE-2023-46842

Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and other modes. This in particular means that they may set registers used to pass 32-bit-mode hypercall arguments to values outside of the range 32-bit code would be able to set them to. When processing of hypercalls takes a...

CVE-2023-46842 x86 HVM hypercalls may trigger Xen bug check

Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and other modes. This in particular means that they may set registers used to pass 32-bit-mode hypercall arguments to values outside of the range 32-bit code would be able to set them to. When processing of hypercalls takes a...

CVE-2023-46842 x86 HVM hypercalls may trigger Xen bug check

Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and other modes. This in particular means that they may set registers used to pass 32-bit-mode hypercall arguments to values outside of the range 32-bit code would be able to set them to. When processing of hypercalls takes a...

openSUSE: Security Advisory for xen (SUSE-SU-2024:1540-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

Fedora 40 : xen (2024-a46df5ba2f)

The remote Fedora 40 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-a46df5ba2f advisory. x86: Native Branch History Injection XSA-456, CVE-2024-2201 update to xen 4.18.2, remove patches now included upstream x86 HVM hypercalls may trigge...

SUSE-SU-2024:1295-1 Security update for xen

This update for xen fixes the following issues: - CVE-2023-46842: Fixed denial of service due to Xen bug check triggered by HVM hypercalls XSA-454 in xen x86 bsc1221984 - CVE-2024-31142: Fixed incorrect logic for BTC/SRSO mitigations XSA-455 in xen x86 bsc1222302 - CVE-2024-2201: Fixed memory...

x86 HVM hypercalls may trigger Xen bug check

ISSUE DESCRIPTION Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and other modes. This in particular means that they may set registers used to pass 32-bit-mode hypercall arguments to values outside of the range 32-bit code would be able to set them to. When processing of...

SUSE CVE-2021-46988

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: release page in error path to avoid BUGON Consider the following sequence of events: 1. Userspace issues a UFFD ioctl, which ends up calling into shmemmfillatomicpte. We successfully account the blocks, we...

SUSE CVE-2021-46910

In the Linux kernel, the following vulnerability has been resolved: ARM: 9063/1: mm: reduce maximum number of CPUs if DEBUGKMAPLOCAL is enabled The debugging code for kmaplocal doubles the number of per-CPU fixmap slots allocated for kmaplocal, in order to use half of them as guard regions. This...

SUSE CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

SUSE SLES11: xen / xen-doc-html / xen-kmp-default / xen-kmp-pae / xen-libs / etc (SUSE-SU-2022:14886-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:14886-1 advisory. - CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a grant. XSA-394 bsc1194581 - CVE-2022-23035: Fixed insufficient cleanu...

CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

Design/Logic Flaw

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

UBUNTU-CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

CVE-2022-23034

A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a...

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...

Design/Logic Flaw

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...

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...