Upstream information

CVE-2020-15565 at MITRE

Description

An issue was discovered in Xen through 4.13.x, allowing x86 Intel HVM guest OS users to cause a host OS denial of service or possibly gain privileges because of insufficient cache write-back under VT-d. When page tables are shared between IOMMU and CPU, changes to them require flushing of both TLBs. Furthermore, IOMMUs may be non-coherent, and hence prior to flushing IOMMU TLBs, a CPU cache also needs writing back to memory after changes were made. Such writing back of cached data was missing in particular when splitting large page mappings into smaller granularity ones. A malicious guest may be able to retain read/write DMA access to frames returned to Xen's free pool, and later reused for another purpose. Host crashes (leading to a Denial of Service) and privilege escalation cannot be ruled out. Xen versions from at least 3.2 onwards are affected. Only x86 Intel systems are affected. x86 AMD as well as Arm systems are not affected. Only x86 HVM guests using hardware assisted paging (HAP), having a passed through PCI device assigned, and having page table sharing enabled can leverage the vulnerability. Note that page table sharing will be enabled (by default) only if Xen considers IOMMU and CPU large page size support compatible.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6.1
Vector AV:L/AC:L/Au:N/C:P/I:P/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 8.8 7.9
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Changed Changed
Confidentiality Impact High Low
Integrity Impact High Low
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1173378 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
HPE Helion Openstack 8
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
HPE-Helion-OpenStack-8-2020-1886
Image SLES15-EC2-CHOST-HVM-BYOS
  • xen-libs >= 4.10.4_12-3.35.1
  • xen-tools-domU >= 4.10.4_12-3.35.1
Image SLES15-SP1-CHOST-BYOS-EC2
  • xen-libs >= 4.12.3_04-3.22.1
  • xen-tools-domU >= 4.12.3_04-3.22.1
Image SLES15-SP2-CHOST-BYOS-Aliyun
Image SLES15-SP2-CHOST-BYOS-Azure
Image SLES15-SP2-CHOST-BYOS-GCE
Image SLES15-SP2-CHOST-BYOS-OpenStack
  • xen-libs >= 4.13.1_04-3.4.1
Image SLES15-SP2-CHOST-BYOS-EC2
  • xen-libs >= 4.13.1_04-3.4.1
  • xen-tools-domU >= 4.13.1_04-3.4.1
SUSE Enterprise Storage 5
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-Storage-5-2020-1886
SUSE Linux Enterprise High Performance Computing 15-ESPOS
SUSE Linux Enterprise High Performance Computing 15-LTSS
  • xen >= 4.10.4_12-3.35.1
  • xen-devel >= 4.10.4_12-3.35.1
  • xen-libs >= 4.10.4_12-3.35.1
  • xen-tools >= 4.10.4_12-3.35.1
  • xen-tools-domU >= 4.10.4_12-3.35.1
Patchnames:
SUSE-SLE-Product-HPC-15-2020-1888
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • xen-libs >= 4.12.3_04-3.22.1
  • xen-tools-domU >= 4.12.3_04-3.22.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2020-1889
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • xen-libs >= 4.13.1_04-3.4.1
  • xen-tools-domU >= 4.13.1_04-3.4.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP2-2020-1902
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • xen-libs >= 4.14.1_16-1.6
  • xen-tools-domU >= 4.14.1_16-1.6
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • xen >= 4.12.3_04-3.22.1
  • xen-devel >= 4.12.3_04-3.22.1
  • xen-doc-html >= 4.12.3_04-3.22.1
  • xen-libs >= 4.12.3_04-3.22.1
  • xen-libs-32bit >= 4.12.3_04-3.22.1
  • xen-tools >= 4.12.3_04-3.22.1
  • xen-tools-domU >= 4.12.3_04-3.22.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1889
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2
  • xen >= 4.13.1_04-3.4.1
  • xen-devel >= 4.13.1_04-3.4.1
  • xen-doc-html >= 4.13.1_04-3.4.1
  • xen-libs >= 4.13.1_04-3.4.1
  • xen-libs-32bit >= 4.13.1_04-3.4.1
  • xen-tools >= 4.13.1_04-3.4.1
  • xen-tools-domU >= 4.13.1_04-3.4.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP2-2020-1902
SUSE Linux Enterprise Module for Server Applications 15 SP1
  • xen >= 4.12.3_04-3.22.1
  • xen-devel >= 4.12.3_04-3.22.1
  • xen-tools >= 4.12.3_04-3.22.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP1-2020-1889
SUSE Linux Enterprise Module for Server Applications 15 SP2
  • xen >= 4.13.1_04-3.4.1
  • xen-devel >= 4.13.1_04-3.4.1
  • xen-tools >= 4.13.1_04-3.4.1
  • xen-tools-xendomains-wait-disk >= 4.13.1_04-3.4.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP2-2020-1902
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • xen >= 4.14.1_16-1.6
  • xen-devel >= 4.14.1_16-1.6
  • xen-tools >= 4.14.1_16-1.6
  • xen-tools-xendomains-wait-disk >= 4.14.1_16-1.6
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-SLE-POS-12-SP2-CLIENT-2020-2822
SUSE Linux Enterprise Server 11 SP4-LTSS
  • xen >= 4.4.4_44-61.55.1
  • xen-doc-html >= 4.4.4_44-61.55.1
  • xen-kmp-default >= 4.4.4_44_3.0.101_108.117-61.55.1
  • xen-kmp-pae >= 4.4.4_44_3.0.101_108.117-61.55.1
  • xen-libs >= 4.4.4_44-61.55.1
  • xen-libs-32bit >= 4.4.4_44-61.55.1
  • xen-tools >= 4.4.4_44-61.55.1
  • xen-tools-domU >= 4.4.4_44-61.55.1
Patchnames:
slessp4-xen-14521
SUSE Linux Enterprise Server 12 SP2-BCL
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-BCL-2020-2822
SUSE Linux Enterprise Server 12 SP2-ESPOS
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-ESPOS-2020-2822
SUSE Linux Enterprise Server 12 SP2-LTSS
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2020-2822
SUSE Linux Enterprise Server 12 SP3-BCL
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-BCL-2020-1886
SUSE Linux Enterprise Server 12 SP3-ESPOS
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-ESPOS-2020-1886
SUSE Linux Enterprise Server 12 SP3-LTSS
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-2020-1886
SUSE Linux Enterprise Server 12 SP4-ESPOS
  • xen >= 4.11.4_04-2.30.1
  • xen-doc-html >= 4.11.4_04-2.30.1
  • xen-libs >= 4.11.4_04-2.30.1
  • xen-libs-32bit >= 4.11.4_04-2.30.1
  • xen-tools >= 4.11.4_04-2.30.1
  • xen-tools-domU >= 4.11.4_04-2.30.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-ESPOS-2020-1891
SUSE Linux Enterprise Server 12 SP4-LTSS
  • xen >= 4.11.4_04-2.30.1
  • xen-doc-html >= 4.11.4_04-2.30.1
  • xen-libs >= 4.11.4_04-2.30.1
  • xen-libs-32bit >= 4.11.4_04-2.30.1
  • xen-tools >= 4.11.4_04-2.30.1
  • xen-tools-domU >= 4.11.4_04-2.30.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-LTSS-2020-1891
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • xen >= 4.12.3_04-3.18.1
  • xen-doc-html >= 4.12.3_04-3.18.1
  • xen-libs >= 4.12.3_04-3.18.1
  • xen-libs-32bit >= 4.12.3_04-3.18.1
  • xen-tools >= 4.12.3_04-3.18.1
  • xen-tools-domU >= 4.12.3_04-3.18.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2020-1887
SUSE Linux Enterprise Server 15-LTSS
  • xen >= 4.10.4_12-3.35.1
  • xen-devel >= 4.10.4_12-3.35.1
  • xen-libs >= 4.10.4_12-3.35.1
  • xen-tools >= 4.10.4_12-3.35.1
  • xen-tools-domU >= 4.10.4_12-3.35.1
Patchnames:
SUSE-SLE-Product-SLES-15-2020-1888
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-SLE-SAP-12-SP2-2020-2822
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-SLE-SAP-12-SP3-2020-1886
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • xen >= 4.11.4_04-2.30.1
  • xen-doc-html >= 4.11.4_04-2.30.1
  • xen-libs >= 4.11.4_04-2.30.1
  • xen-libs-32bit >= 4.11.4_04-2.30.1
  • xen-tools >= 4.11.4_04-2.30.1
  • xen-tools-domU >= 4.11.4_04-2.30.1
Patchnames:
SUSE-SLE-SAP-12-SP4-2020-1891
SUSE Linux Enterprise Server for SAP Applications 15
  • xen >= 4.10.4_12-3.35.1
  • xen-devel >= 4.10.4_12-3.35.1
  • xen-libs >= 4.10.4_12-3.35.1
  • xen-tools >= 4.10.4_12-3.35.1
  • xen-tools-domU >= 4.10.4_12-3.35.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-2020-1888
SUSE Linux Enterprise Software Development Kit 12 SP5
  • xen-devel >= 4.12.3_04-3.18.1
Patchnames:
SUSE-SLE-SDK-12-SP5-2020-1887
SUSE OpenStack Cloud 7
  • xen >= 4.7.6_10-43.67.1
  • xen-doc-html >= 4.7.6_10-43.67.1
  • xen-libs >= 4.7.6_10-43.67.1
  • xen-libs-32bit >= 4.7.6_10-43.67.1
  • xen-tools >= 4.7.6_10-43.67.1
  • xen-tools-domU >= 4.7.6_10-43.67.1
Patchnames:
SUSE-OpenStack-Cloud-7-2020-2822
SUSE OpenStack Cloud 8
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-OpenStack-Cloud-8-2020-1886
SUSE OpenStack Cloud 9
  • xen >= 4.11.4_04-2.30.1
  • xen-doc-html >= 4.11.4_04-2.30.1
  • xen-libs >= 4.11.4_04-2.30.1
  • xen-libs-32bit >= 4.11.4_04-2.30.1
  • xen-tools >= 4.11.4_04-2.30.1
  • xen-tools-domU >= 4.11.4_04-2.30.1
Patchnames:
SUSE-OpenStack-Cloud-9-2020-1891
SUSE OpenStack Cloud Crowbar 8
  • xen >= 4.9.4_08-3.66.1
  • xen-doc-html >= 4.9.4_08-3.66.1
  • xen-libs >= 4.9.4_08-3.66.1
  • xen-libs-32bit >= 4.9.4_08-3.66.1
  • xen-tools >= 4.9.4_08-3.66.1
  • xen-tools-domU >= 4.9.4_08-3.66.1
Patchnames:
SUSE-OpenStack-Cloud-Crowbar-8-2020-1886
SUSE OpenStack Cloud Crowbar 9
  • xen >= 4.11.4_04-2.30.1
  • xen-doc-html >= 4.11.4_04-2.30.1
  • xen-libs >= 4.11.4_04-2.30.1
  • xen-libs-32bit >= 4.11.4_04-2.30.1
  • xen-tools >= 4.11.4_04-2.30.1
  • xen-tools-domU >= 4.11.4_04-2.30.1
Patchnames:
SUSE-OpenStack-Cloud-Crowbar-9-2020-1891
openSUSE Leap 15.1
  • xen >= 4.12.3_04-lp151.2.21.1
  • xen-debugsource >= 4.12.3_04-lp151.2.21.1
  • xen-devel >= 4.12.3_04-lp151.2.21.1
  • xen-doc-html >= 4.12.3_04-lp151.2.21.1
  • xen-libs >= 4.12.3_04-lp151.2.21.1
  • xen-libs-32bit >= 4.12.3_04-lp151.2.21.1
  • xen-libs-32bit-debuginfo >= 4.12.3_04-lp151.2.21.1
  • xen-libs-debuginfo >= 4.12.3_04-lp151.2.21.1
  • xen-tools >= 4.12.3_04-lp151.2.21.1
  • xen-tools-debuginfo >= 4.12.3_04-lp151.2.21.1
  • xen-tools-domU >= 4.12.3_04-lp151.2.21.1
  • xen-tools-domU-debuginfo >= 4.12.3_04-lp151.2.21.1
Patchnames:
openSUSE-2020-965
openSUSE Leap 15.2
  • xen >= 4.13.1_04-lp152.2.3.1
  • xen-debugsource >= 4.13.1_04-lp152.2.3.1
  • xen-devel >= 4.13.1_04-lp152.2.3.1
  • xen-doc-html >= 4.13.1_04-lp152.2.3.1
  • xen-libs >= 4.13.1_04-lp152.2.3.1
  • xen-libs-32bit >= 4.13.1_04-lp152.2.3.1
  • xen-libs-32bit-debuginfo >= 4.13.1_04-lp152.2.3.1
  • xen-libs-debuginfo >= 4.13.1_04-lp152.2.3.1
  • xen-tools >= 4.13.1_04-lp152.2.3.1
  • xen-tools-debuginfo >= 4.13.1_04-lp152.2.3.1
  • xen-tools-domU >= 4.13.1_04-lp152.2.3.1
  • xen-tools-domU-debuginfo >= 4.13.1_04-lp152.2.3.1
  • xen-tools-xendomains-wait-disk >= 4.13.1_04-lp152.2.3.1
Patchnames:
openSUSE-2020-985
openSUSE Tumbleweed
  • xen >= 4.15.1_01-1.2
  • xen-devel >= 4.15.1_01-1.2
  • xen-doc-html >= 4.15.1_01-1.2
  • xen-libs >= 4.15.1_01-1.2
  • xen-libs-32bit >= 4.15.1_01-1.2
  • xen-tools >= 4.15.1_01-1.2
  • xen-tools-domU >= 4.15.1_01-1.2
  • xen-tools-xendomains-wait-disk >= 4.15.1_01-1.2
Patchnames:
openSUSE Tumbleweed GA xen-4.15.1_01-1.2


First public cloud image revisions this CVE is fixed in:


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 In progress
SUSE CaaS Platform 3.0 xen Affected
SUSE CaaS Platform 4.0 xen In progress
SUSE Container as a Service Platform 1.0 xen Affected
SUSE Container as a Service Platform 2.0 xen Affected
SUSE Enterprise Storage 6 xen In progress
SUSE Linux Enterprise High Performance Computing 12 SP4 xen In progress
SUSE Linux Enterprise High Performance Computing 12 SP5 xen Released
SUSE Linux Enterprise High Performance Computing 15 LTSS xen Released
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS xen In progress
SUSE Linux Enterprise Module for Basesystem 15 SP1 xen Released
SUSE Linux Enterprise Module for Basesystem 15 SP2 xen Released
SUSE Linux Enterprise Module for Server Applications 15 SP1 xen Released
SUSE Linux Enterprise Module for Server Applications 15 SP2 xen Released
SUSE Linux Enterprise Server 11 SP4 LTSS xen In progress
SUSE Linux Enterprise Server 12 SP2 BCL xen In progress
SUSE Linux Enterprise Server 12 SP2 LTSS xen Affected
SUSE Linux Enterprise Server 12 SP2 LTSS ERICSSON xen In progress
SUSE Linux Enterprise Server 12 SP2 LTSS SAP xen In progress
SUSE Linux Enterprise Server 12 SP3 BCL xen Released
SUSE Linux Enterprise Server 12 SP3 ESPOS xen In progress
SUSE Linux Enterprise Server 12 SP3 LTSS xen Released
SUSE Linux Enterprise Server 12 SP4 xen In progress
SUSE Linux Enterprise Server 12 SP4 ESPOS xen In progress
SUSE Linux Enterprise Server 12 SP4 LTSS xen Released
SUSE Linux Enterprise Server 12 SP5 xen Released
SUSE Linux Enterprise Server 15 LTSS xen In progress
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux xen In progress
SUSE Linux Enterprise Server 15 SP1 LTSS xen In progress
SUSE Linux Enterprise Server ESPOS 15 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xen Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 xen Released
SUSE Linux Enterprise Server for SAP Applications 15 xen In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP1 xen In progress
SUSE Linux Enterprise Software Development Kit 12 SP4 xen In progress
SUSE Linux Enterprise Software Development Kit 12 SP5 xen Released
SUSE Manager Proxy 4.0 xen In progress
SUSE Manager Retail Branch Server 4.0 xen In progress
SUSE Manager Server 4.0 xen In progress
SUSE OpenStack Cloud 8 xen In progress
SUSE OpenStack Cloud 9 xen In progress
SUSE OpenStack Cloud Crowbar 8 xen In progress
SUSE OpenStack Cloud Crowbar 9 xen In progress