Upstream information

CVE-2021-3308 at MITRE

Description

An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI(-X) entries that the guest might had enabled, and hence will lead to vector exhaustion on the system, not allowing further PCI pass through devices to work properly. HVM guests with PCI pass through devices can mount a Denial of Service (DoS) attack affecting the pass through of PCI devices to other guests or the hardware domain. In the latter case, this would affect the entire host.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.5 5.9
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Access Vector Local Local
Access Complexity Low High
Privileges Required Low None
User Interaction None None
Scope Unchanged Changed
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1181254 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-SP2-CHOST-BYOS-Aliyun
Image SLES15-SP2-CHOST-BYOS-Azure
Image SLES15-SP2-CHOST-BYOS-GCE
  • xen-libs >= 4.13.2_08-3.25.3
Image SLES15-SP2-CHOST-BYOS-EC2
  • xen-libs >= 4.13.2_08-3.25.3
  • xen-tools-domU >= 4.13.2_08-3.25.3
SUSE CaaS Platform 4.0
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SUSE-CAASP-4.0-2021-1460
SUSE Enterprise Storage 6
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-Storage-6-2021-1460
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-HPC-15-SP1-ESPOS-2021-1460
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-HPC-15-SP1-LTSS-2021-1460
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • xen-libs >= 4.13.2_08-3.25.3
  • xen-tools-domU >= 4.13.2_08-3.25.3
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP2-2021-1028
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2
  • xen >= 4.13.2_08-3.25.3
  • xen-devel >= 4.13.2_08-3.25.3
  • xen-doc-html >= 4.13.2_08-3.25.3
  • xen-libs >= 4.13.2_08-3.25.3
  • xen-libs-32bit >= 4.13.2_08-3.25.3
  • xen-tools >= 4.13.2_08-3.25.3
  • xen-tools-domU >= 4.13.2_08-3.25.3
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP2-2021-1028
SUSE Linux Enterprise Module for Server Applications 15 SP2
  • xen >= 4.13.2_08-3.25.3
  • xen-devel >= 4.13.2_08-3.25.3
  • xen-tools >= 4.13.2_08-3.25.3
  • xen-tools-xendomains-wait-disk >= 4.13.2_08-3.25.3
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP2-2021-1028
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • xen >= 4.12.4_09-3.39.3
  • xen-doc-html >= 4.12.4_09-3.39.3
  • xen-libs >= 4.12.4_09-3.39.3
  • xen-libs-32bit >= 4.12.4_09-3.39.3
  • xen-tools >= 4.12.4_09-3.39.3
  • xen-tools-domU >= 4.12.4_09-3.39.3
Patchnames:
SUSE-SLE-SERVER-12-SP5-2021-1023
SUSE Linux Enterprise Server 15 SP1-BCL
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SLES-15-SP1-BCL-2021-1460
SUSE Linux Enterprise Server 15 SP1-LTSS
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-1460
SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP1-2021-1460
SUSE Linux Enterprise Software Development Kit 12 SP5
  • xen-devel >= 4.12.4_09-3.39.3
Patchnames:
SUSE-SLE-SDK-12-SP5-2021-1023
SUSE Manager Proxy 4.0
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-1460
SUSE Manager Retail Branch Server 4.0
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-1460
SUSE Manager Server 4.0
  • xen >= 4.12.4_08-3.43.3
  • xen-devel >= 4.12.4_08-3.43.3
  • xen-libs >= 4.12.4_08-3.43.3
  • xen-tools >= 4.12.4_08-3.43.3
  • xen-tools-domU >= 4.12.4_08-3.43.3
Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-1460
SUSE MicroOS 5.0
  • xen-libs >= 4.13.2_08-3.25.3
Patchnames:
SUSE-SUSE-MicroOS-5.0-2021-1028
openSUSE Leap 15.2
  • xen >= 4.13.2_08-lp152.2.24.1
  • xen-debugsource >= 4.13.2_08-lp152.2.24.1
  • xen-devel >= 4.13.2_08-lp152.2.24.1
  • xen-doc-html >= 4.13.2_08-lp152.2.24.1
  • xen-libs >= 4.13.2_08-lp152.2.24.1
  • xen-libs-32bit >= 4.13.2_08-lp152.2.24.1
  • xen-libs-32bit-debuginfo >= 4.13.2_08-lp152.2.24.1
  • xen-libs-debuginfo >= 4.13.2_08-lp152.2.24.1
  • xen-tools >= 4.13.2_08-lp152.2.24.1
  • xen-tools-debuginfo >= 4.13.2_08-lp152.2.24.1
  • xen-tools-domU >= 4.13.2_08-lp152.2.24.1
  • xen-tools-domU-debuginfo >= 4.13.2_08-lp152.2.24.1
  • xen-tools-xendomains-wait-disk >= 4.13.2_08-lp152.2.24.1
Patchnames:
openSUSE-2021-514
openSUSE Leap 15.3 SLE Imports
  • xen >= 4.13.2_08-3.25.3
  • xen-debugsource >= 4.13.2_08-3.25.3
  • xen-devel >= 4.13.2_08-3.25.3
  • xen-doc-html >= 4.13.2_08-3.25.3
  • xen-libs >= 4.13.2_08-3.25.3
  • xen-libs-32bit >= 4.13.2_08-3.25.3
  • xen-libs-32bit-debuginfo >= 4.13.2_08-3.25.3
  • xen-libs-64bit >= 4.13.2_08-3.25.3
  • xen-libs-64bit-debuginfo >= 4.13.2_08-3.25.3
  • xen-libs-debuginfo >= 4.13.2_08-3.25.3
  • xen-tools >= 4.13.2_08-3.25.3
  • xen-tools-debuginfo >= 4.13.2_08-3.25.3
  • xen-tools-domU >= 4.13.2_08-3.25.3
  • xen-tools-domU-debuginfo >= 4.13.2_08-3.25.3
  • xen-tools-xendomains-wait-disk >= 4.13.2_08-3.25.3
Patchnames:
SUSE-2021-1028
SUSE-2021-1460


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 Not affected
SUSE CaaS Platform 4.0 xen In progress
SUSE Enterprise Storage 5 xen Unsupported
SUSE Enterprise Storage 6 xen In progress
SUSE Linux Enterprise High Performance Computing 12 SP5 xen Released
SUSE Linux Enterprise High Performance Computing 15 LTSS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS xen In progress
SUSE Linux Enterprise Module for Basesystem 15 SP1 xen Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 xen Released
SUSE Linux Enterprise Module for Server Applications 15 SP1 xen Unsupported
SUSE Linux Enterprise Module for Server Applications 15 SP2 xen Released
SUSE Linux Enterprise Point of Service 11 SP3 xen Not affected
SUSE Linux Enterprise Point of Service Image Server 12 xen Unsupported
SUSE Linux Enterprise Server 11 SP4 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP2 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP2 ESPOS xen Unsupported
SUSE Linux Enterprise Server 12 SP2 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP3 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP3 ESPOS xen Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP4 ESPOS xen Not affected
SUSE Linux Enterprise Server 12 SP4 LTSS xen Not affected
SUSE Linux Enterprise Server 12 SP5 xen Released
SUSE Linux Enterprise Server 15 LTSS xen Not affected
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 Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xen Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 xen Released
SUSE Linux Enterprise Server for SAP Applications 15 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 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 7 xen Not affected
SUSE OpenStack Cloud 8 xen Not affected
SUSE OpenStack Cloud 9 xen Not affected
SUSE OpenStack Cloud Crowbar 8 xen Not affected
SUSE OpenStack Cloud Crowbar 9 xen Not affected