Upstream information

CVE-2021-28702 at MITRE

Description

PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR"). These are typically used for platform tasks such as legacy USB emulation. If such a device is passed through to a guest, then on guest shutdown the device is not properly deassigned. The IOMMU configuration for these devices which are not properly deassigned ends up pointing to a freed data structure, including the IO Pagetables. Subsequent DMA or interrupts from the device will have unpredictable behaviour, ranging from IOMMU faults to memory corruption.

SUSE information

Overall state of this security issue: Analysis

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.6
Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Access Vector Physical
Access Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1191363 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • xen >= 4.16.0_01-1.1
  • xen-devel >= 4.16.0_01-1.1
  • xen-doc-html >= 4.16.0_01-1.1
  • xen-libs >= 4.16.0_01-1.1
  • xen-libs-32bit >= 4.16.0_01-1.1
  • xen-tools >= 4.16.0_01-1.1
  • xen-tools-domU >= 4.16.0_01-1.1
  • xen-tools-xendomains-wait-disk >= 4.16.0_01-1.1
Patchnames:
openSUSE Tumbleweed GA xen-4.16.0_01-1.1

List of packages in QA

Product(s) Package(s)
SUSE CaaS Platform 4.0
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Enterprise Storage 6
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • xen-libs >= 4.13.4_02-3.40.1
  • xen-tools-domU >= 4.13.4_02-3.40.1
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • xen-libs >= 4.14.3_04-3.15.1
  • xen-tools-domU >= 4.14.3_04-3.15.1
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2
  • xen >= 4.13.4_02-3.40.1
  • xen-devel >= 4.13.4_02-3.40.1
  • xen-doc-html >= 4.13.4_02-3.40.1
  • xen-libs >= 4.13.4_02-3.40.1
  • xen-libs-32bit >= 4.13.4_02-3.40.1
  • xen-tools >= 4.13.4_02-3.40.1
  • xen-tools-domU >= 4.13.4_02-3.40.1
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3
  • xen >= 4.14.3_04-3.15.1
  • xen-devel >= 4.14.3_04-3.15.1
  • xen-doc-html >= 4.14.3_04-3.15.1
  • xen-libs >= 4.14.3_04-3.15.1
  • xen-libs-32bit >= 4.14.3_04-3.15.1
  • xen-tools >= 4.14.3_04-3.15.1
  • xen-tools-domU >= 4.14.3_04-3.15.1
SUSE Linux Enterprise Module for Server Applications 15 SP2
  • xen >= 4.13.4_02-3.40.1
  • xen-devel >= 4.13.4_02-3.40.1
  • xen-tools >= 4.13.4_02-3.40.1
  • xen-tools-xendomains-wait-disk >= 4.13.4_02-3.40.1
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • xen >= 4.14.3_04-3.15.1
  • xen-devel >= 4.14.3_04-3.15.1
  • xen-tools >= 4.14.3_04-3.15.1
  • xen-tools-xendomains-wait-disk >= 4.14.3_04-3.15.1
SUSE Linux Enterprise Server 12 SP5
  • xen >= 4.12.4_16-3.55.1
  • xen-doc-html >= 4.12.4_16-3.55.1
  • xen-libs >= 4.12.4_16-3.55.1
  • xen-libs-32bit >= 4.12.4_16-3.55.1
  • xen-tools >= 4.12.4_16-3.55.1
  • xen-tools-domU >= 4.12.4_16-3.55.1
SUSE Linux Enterprise Server 15 SP1-BCL
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise Server 15 SP1-LTSS
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • xen >= 4.12.4_16-3.55.1
  • xen-doc-html >= 4.12.4_16-3.55.1
  • xen-libs >= 4.12.4_16-3.55.1
  • xen-libs-32bit >= 4.12.4_16-3.55.1
  • xen-tools >= 4.12.4_16-3.55.1
  • xen-tools-domU >= 4.12.4_16-3.55.1
SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • xen >= 4.12.4_16-3.57.1
  • xen-devel >= 4.12.4_16-3.57.1
  • xen-libs >= 4.12.4_16-3.57.1
  • xen-tools >= 4.12.4_16-3.57.1
  • xen-tools-domU >= 4.12.4_16-3.57.1
SUSE Linux Enterprise Software Development Kit 12 SP5
  • xen-devel >= 4.12.4_16-3.55.1
SUSE MicroOS 5.0
  • xen-libs >= 4.13.4_02-3.40.1
SUSE MicroOS 5.1
  • xen-libs >= 4.14.3_04-3.15.1


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 xen Analysis
SLES-LTSS-SAP xen Analysis
SUSE CaaS Platform 4.0 xen In progress
SUSE Enterprise Storage 6 xen In progress
SUSE Linux Enterprise High Performance Computing 12 SP5 xen In progress
SUSE Linux Enterprise High Performance Computing 15 LTSS xen Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS xen In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS xen In progress
SUSE Linux Enterprise Micro 5.0 xen In progress
SUSE Linux Enterprise Micro 5.1 xen In progress
SUSE Linux Enterprise Module for Basesystem 15 SP2 xen In progress
SUSE Linux Enterprise Module for Basesystem 15 SP3 xen In progress
SUSE Linux Enterprise Module for Server Applications 15 SP2 xen In progress
SUSE Linux Enterprise Module for Server Applications 15 SP3 xen In progress
SUSE Linux Enterprise Point of Service 11 SP3 xen Analysis
SUSE Linux Enterprise Server 11 SP1 xen Analysis
SUSE Linux Enterprise Server 11 SP3 xen Analysis
SUSE Linux Enterprise Server 11 SP4 xen Analysis
SUSE Linux Enterprise Server 11 SP4 LTSS xen Analysis
SUSE Linux Enterprise Server 12 SP3 ESPOS xen Analysis
SUSE Linux Enterprise Server 12 SP3 LTSS xen Analysis
SUSE Linux Enterprise Server 12 SP4 ESPOS xen Analysis
SUSE Linux Enterprise Server 12 SP4 LTSS xen Analysis
SUSE Linux Enterprise Server 12 SP5 xen In progress
SUSE Linux Enterprise Server 15 ESPOS xen Analysis
SUSE Linux Enterprise Server 15 LTSS xen Analysis
SUSE Linux Enterprise Server 15 SP1 LTSS xen In progress
SUSE Linux Enterprise Server BCL 12 SP2 xen Analysis
SUSE Linux Enterprise Server BCL 12 SP3 xen Analysis
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 xen In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xen Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 xen Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP5 xen In progress
SUSE Linux Enterprise Server for SAP Applications 15 xen Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP1 xen In progress
SUSE OpenStack Cloud 8 xen Analysis
SUSE OpenStack Cloud 9 xen Analysis
SUSE OpenStack Cloud Crowbar 8 xen Analysis
SUSE OpenStack Cloud Crowbar 9 xen Analysis