CVE-2022-23033

CVE-2022-23033 affects the Xen hypervisor (Arm guest) where guest_physmap_remove_page and related p2m removal do not clear a pagetable entry if the valid bit is not set, allowing a guest that uses set/way cache maintenance instructions and then releases memory via XENMEM_decrease_reservation to r...

arm: guest_physmap_remove_page not removing the p2m mappings

ISSUE DESCRIPTION The functions to remove one or more entries from a guest p2m pagetable on Arm p2mremovemapping, guestphysmapremovepage, and p2msetentry with mfn set to INVALIDMFN do not actually clear the pagetable entry if the entry doesn't have the valid bit set. It is possible to have a vali...

OracleVM 3.4 : xen (OVMSA-2022-0004)

The remote OracleVM system is missing necessary patches to address security updates: - issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be...

SUSE SLED15: xen / xen-devel / xen-libs / xen-tools / xen-tools-domU / etc (SUSE-SU-2021:3968-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3968-1 advisory. - CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly XSA-386 bsc1191363. - CVE-2021-28704, CVE-2021-28707,...

openSUSE 15 Security Update : xen (openSUSE-SU-2021:3968-1)

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:3968-1 advisory. - PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions specified via...

Security update for xen (moderate)

openSUSE Security Update: Security update for xen Announcement ID: openSUSE-SU-2021:3968-1 Rating: moderate References: 1027519 1191363 1192554 1192557 1192559 Cross-References: CVE-2021-28702 CVE-2021-28704 CVE-2021-28705 CVE-2021-28706 CVE-2021-28707 CVE-2021-28708 CVE-2021-28709 CVSS scores:...

openSUSE 15 Security Update : xen (openSUSE-SU-2021:1543-1)

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1543-1 advisory. - PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions specified via...

OPENSUSE-SU-2021:1543-1 Security update for xen

This update for xen fixes the following issues: - CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly XSA-386 bsc1191363. - CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs XSA-388 bsc1192557. - CVE-2021-28705, CVE-2021-28709: Fixed issues...

Debian DSA-5017-1 : xen - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5017 advisory. Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in privilege escalation, denial of service or information leaks. For the...

SUSE SLES15 Security Update : xen (SUSE-SU-2021:3842-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3842-1 advisory. - CVE-2021-28701: Fixed race condition in XENMAPSPACEgranttable handling XSA-384 bsc1189632. - CVE-2021-28704, CVE-2021-28707,...

SUSE SLED12: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2021:3852-1)

The remote SUSE Linux SLED12 / SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3852-1 advisory. - CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly XSA-386 bsc1191363. - CVE-2021-28704,...

SUSE: Security Advisory (SUSE-SU-2021:3813-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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: xen / xen-doc-html / xen-libs / xen-libs-32bit / xen-tools / etc (SUSE-SU-2021:3813-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3813-1 advisory. - CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs XSA-388 bsc1192557. - CVE-2021-28705, CVE-2021-28709:...

DEBIAN-CVE-2021-28709

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28709

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28705

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28709

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28705

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28709: Improper Handling of Exceptional Conditions

issues with partially successful P2M updates on x86 This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. x86 HVM and PVH guests may be started in populate-on-demand PoD mode, to provide a way for them to later easily have...

CVE-2021-28705

CVE-2021-28705 and CVE-2021-28709 concerns Xen hypervisor on x86 HVM/PVH guests running in populate-on-demand (PoD). The issue stems from partial success handling of P2M updates in hypercalls that operate on page ranges; requests may be split into chunks leading to insufficient accounting of part...