Upstream information
Description
An issue was discovered in Xen through 4.11.x. The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
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 |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 6 | 5.5 |
Vector | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local | Local |
Attack Complexity | Low | Low |
Privileges Required | High | Low |
User Interaction | None | None |
Scope | Changed | Unchanged |
Confidentiality Impact | None | None |
Integrity Impact | None | None |
Availability Impact | High | High |
CVSSv3 Version | 3 | 3 |
Note from the SUSE Security Team on the xen package
This issue likely only affects the XEN hypervisor itself, unless otherwise stated. The userland utilities in -tools and libraries in -libs are shipped together with the xen hypervisor as they are built from one source and do not contain hypervisor specific fixes. SUSE Bugzilla entry: 1103276 [RESOLVED / FIXED]SUSE Security Advisories:
- SUSE-SU-2018:3332-1, published Tue Oct 23 10:15:17 MDT 2018
- SUSE-SU-2018:3490-1, published Fri Oct 26 10:14:51 MDT 2018
- SUSE-SU-2018:4300-1, published Fri Dec 28 16:17:00 MST 2018
- openSUSE-SU-2018:4304-1, published Fri Dec 8 15:49:00 2023
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
Image SLES15-EC2-CHOST-HVM-BYOS Image SLES15-EC2-HVM-BYOS Image SLES15-SAP-EC2-HVM Image SLES15-SAP-EC2-HVM-BYOS |
| |
SUSE CaaS Platform 3.0 |
| Patchnames: SUSE-CAASP-3.0-2018-2492 |
SUSE Enterprise Storage 4 |
| Patchnames: SUSE-Storage-4-2018-2398 |
SUSE Enterprise Storage 6 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Manager Proxy 4.0 SUSE Manager Retail Branch Server 4.0 SUSE Manager Server 4.0 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP1 GA xen-libs-4.12.0_12-1.1 SUSE Linux Enterprise Module for Server Applications 15 SP1 GA xen-4.12.0_12-1.1 |
SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP3 GA xen-libs-4.14.1_16-1.6 SUSE Linux Enterprise Module for Server Applications 15 SP3 GA xen-4.14.1_16-1.6 |
SUSE Enterprise Storage 7 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Manager Proxy 4.1 SUSE Manager Retail Branch Server 4.1 SUSE Manager Server 4.1 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP2 GA xen-libs-4.13.1_02-1.2 SUSE Linux Enterprise Module for Server Applications 15 SP2 GA xen-4.13.1_02-1.2 |
SUSE Linux Enterprise Desktop 12 SP3 |
| Patchnames: SUSE-SLE-DESKTOP-12-SP3-2018-2492 SUSE-SLE-SDK-12-SP3-2018-2492 |
SUSE Linux Enterprise Desktop 15 SP1 SUSE Linux Enterprise Module for Basesystem 15 SP1 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP1 GA xen-libs-4.12.0_12-1.1 |
SUSE Linux Enterprise Desktop 15 SP2 SUSE Linux Enterprise Module for Basesystem 15 SP2 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP2 GA xen-libs-4.13.1_02-1.2 |
SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise Module for Basesystem 15 SP3 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP3 GA xen-libs-4.14.1_16-1.6 |
SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise Module for Basesystem 15 SP4 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP4 GA xen-libs-4.16.0_08-150400.2.12 |
SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP5 GA xen-libs-4.17.0_06-150500.1.10 |
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP6 GA xen-libs-4.18.2_02-150600.1.12 |
SUSE Linux Enterprise Desktop 15 SUSE Linux Enterprise Module for Basesystem 15 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-2018-3063 |
SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 |
| Patchnames: SUSE Linux Enterprise Module for Basesystem 15 SP4 GA xen-libs-4.16.0_08-150400.2.12 SUSE Linux Enterprise Module for Server Applications 15 SP4 GA xen-4.16.0_08-150400.2.12 |
SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server for SAP Applications 15 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-2018-3063 SUSE-SLE-Module-Server-Applications-15-2018-3063 |
SUSE Linux Enterprise Micro 5.0 |
| Patchnames: SUSE Linux Enterprise Micro 5.0 GA xen-libs-4.13.2_06-3.22.1 |
SUSE Linux Enterprise Micro 5.1 |
| Patchnames: SUSE Linux Enterprise Micro 5.1 GA xen-libs-4.14.2_04-3.9.1 |
SUSE Linux Enterprise Micro 5.2 |
| Patchnames: SUSE Linux Enterprise Micro 5.2 GA xen-libs-4.14.3_06-150300.3.18.2 |
SUSE Linux Enterprise Micro 5.3 |
| Patchnames: SUSE Linux Enterprise Micro 5.3 GA xen-libs-4.16.1_06-150400.4.8.1 |
SUSE Linux Enterprise Micro 5.4 |
| Patchnames: SUSE Linux Enterprise Micro 5.4 GA xen-libs-4.16.3_02-150400.4.19.1 |
SUSE Linux Enterprise Module for Server Applications 15 SP1 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP1 GA xen-4.12.0_12-1.1 |
SUSE Linux Enterprise Module for Server Applications 15 SP2 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP2 GA xen-4.13.1_02-1.2 |
SUSE Linux Enterprise Module for Server Applications 15 SP3 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP3 GA xen-4.14.1_16-1.6 |
SUSE Linux Enterprise Module for Server Applications 15 SP4 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP4 GA xen-4.16.0_08-150400.2.12 |
SUSE Linux Enterprise Module for Server Applications 15 |
| Patchnames: SUSE-SLE-Module-Server-Applications-15-2018-3063 |
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT |
| Patchnames: SUSE-SLE-POS-12-SP2-CLIENT-2018-2398 |
SUSE Linux Enterprise Server 12 SP2-BCL |
| Patchnames: SUSE-SLE-SERVER-12-SP2-BCL-2018-2398 |
SUSE Linux Enterprise Server 12 SP2-ESPOS |
| Patchnames: SUSE-SLE-SERVER-12-SP2-ESPOS-2018-2398 |
SUSE Linux Enterprise Server 12 SP2-LTSS |
| Patchnames: SUSE-SLE-SERVER-12-SP2-2018-2398 |
SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3 |
| Patchnames: SUSE-SLE-SDK-12-SP3-2018-2492 SUSE-SLE-SERVER-12-SP3-2018-2492 |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 |
| Patchnames: SUSE-SLE-SAP-12-SP2-2018-2398 |
SUSE Linux Enterprise Software Development Kit 12 SP3 |
| Patchnames: SUSE-SLE-SDK-12-SP3-2018-2492 |
SUSE OpenStack Cloud 7 |
| Patchnames: SUSE-OpenStack-Cloud-7-2018-2398 |
openSUSE Leap 15.0 |
| Patchnames: openSUSE-2019-1046 |
openSUSE Leap 15.2 |
| Patchnames: openSUSE Leap 15.2 GA xen-libs-4.13.1_02-lp152.1.1 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE Leap 15.3 GA xen-libs-4.14.1_16-1.6 |
openSUSE Leap 15.4 |
| Patchnames: openSUSE Leap 15.4 GA xen-libs-4.16.0_08-150400.2.12 |
openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-11520 |
First public cloud image revisions this CVE is fixed in:
- alibaba/sles-15-sp3-chost-byos-v20210729
- alibaba/sles-15-sp3-chost-byos-v20210827
- amazon/suse-manager-4-2-proxy-byos-v20210924-hvm-ssd-x86_64
- amazon/suse-manager-4-2-server-byos-v20210924-hvm-ssd-x86_64
- amazon/suse-sles-15-sp3-byos-v20210924-hvm-ssd-x86_64
- amazon/suse-sles-15-sp3-chost-byos-v20210729-hvm-ssd-x86_64
- amazon/suse-sles-15-sp3-chost-byos-v20210827-hvm-ssd-x86_64
- amazon/suse-sles-15-sp3-v20210924-ecs-hvm-ssd-x86_64
- amazon/suse-sles-15-sp3-v20210924-hvm-ssd-x86_64
- amazon/suse-sles-hpc-15-sp3-byos-v20210924-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp3-byos-v20210924-hvm-ssd-x86_64
- google/sles-15-sp3-byos-v20210812
- google/sles-15-sp3-chost-byos-v20210729
- google/sles-15-sp3-chost-byos-v20210827
- google/sles-15-sp3-sap-byos-v20210812
- google/sles-15-sp3-sap-v20210812
- google/sles-15-sp3-sapcal-v20210812
- google/sles-15-sp3-v20210812
- google/suse-manager-4-2-proxy-byos-v20210812
- google/suse-manager-4-2-server-byos-v20210812
- microsoft/suse-manager-4-2-proxy-byos-v20210924
- microsoft/suse-manager-4-2-server-byos-v20210924
- microsoft/suse-sles-15-sp3-basic-v20210924
- microsoft/suse-sles-15-sp3-byos-v20210924
- microsoft/suse-sles-15-sp3-chost-byos-v20210729
- microsoft/suse-sles-15-sp3-chost-byos-v20210827
- microsoft/suse-sles-15-sp3-hpc-byos-v20210924
- microsoft/suse-sles-15-sp3-hpc-v20210924
- microsoft/suse-sles-15-sp3-sapcal-v20220120
- microsoft/suse-sles-15-sp3-v20210924
- microsoft/suse-sles-sap-15-sp3-byos-v20210924
- microsoft/suse-sles-sap-15-sp3-v20210924
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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
Product(s) | Source package | State |
---|---|---|
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise Server 15-ESPOS | xen | Unsupported |
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | xen | Already fixed |
Products past their end of life and not receiving proactive updates anymore. | ||
HPE Helion OpenStack 8 | xen | Released |
SUSE CaaS Platform 3.0 | xen | Released |
SUSE CaaS Platform 4.0 | xen | Already fixed |
SUSE Container as a Service Platform 2.0 | xen | Released |
SUSE Enterprise Storage 4 | xen | Released |
SUSE Enterprise Storage 5 | xen | Released |
SUSE Enterprise Storage 6 | xen | Already fixed |
SUSE Linux Enterprise Desktop 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Desktop 12 SP2 | xen | Affected |
SUSE Linux Enterprise Desktop 12 SP3 | xen | Released |
SUSE Linux Enterprise Desktop 12 SP4 | xen | Already fixed |
SUSE Linux Enterprise Desktop 15 | xen | Released |
SUSE Linux Enterprise Desktop 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 | xen | Released |
SUSE Linux Enterprise High Performance Computing 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | Already fixed |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | Affected |
SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | Unsupported |
SUSE Linux Enterprise Module for Basesystem 15 | xen | Released |
SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise Module for Server Applications 15 | xen | Released |
SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | xen | Released |
SUSE Linux Enterprise Server 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Server 11 SP4-LTSS | xen | Not affected |
SUSE Linux Enterprise Server 12 SP2 | xen | Affected |
SUSE Linux Enterprise Server 12 SP2-BCL | xen | Released |
SUSE Linux Enterprise Server 12 SP2-ESPOS | xen | Released |
SUSE Linux Enterprise Server 12 SP2-LTSS | xen | Released |
SUSE Linux Enterprise Server 12 SP3 | xen | Released |
SUSE Linux Enterprise Server 12 SP3-BCL | xen | Released |
SUSE Linux Enterprise Server 12 SP3-ESPOS | xen | Released |
SUSE Linux Enterprise Server 12 SP3-LTSS | xen | Released |
SUSE Linux Enterprise Server 12 SP4 | xen | Already fixed |
SUSE Linux Enterprise Server 12 SP4-ESPOS | xen | Already fixed |
SUSE Linux Enterprise Server 12 SP4-LTSS | xen | Already fixed |
SUSE Linux Enterprise Server 15 | xen | Released |
SUSE Linux Enterprise Server 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise Server 15 SP1-BCL | xen | Already fixed |
SUSE Linux Enterprise Server 15 SP1-LTSS | xen | Already fixed |
SUSE Linux Enterprise Server 15-LTSS | xen | Unsupported |
SUSE Linux Enterprise Server for SAP Applications 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 | xen | Released |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | Released |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | Already fixed |
SUSE Linux Enterprise Server for SAP Applications 15 | xen | Released |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | Already fixed |
SUSE Linux Enterprise Software Development Kit 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Software Development Kit 12 SP2 | xen | Affected |
SUSE Linux Enterprise Software Development Kit 12 SP3 | xen | Released |
SUSE Linux Enterprise Software Development Kit 12 SP4 | xen | Already fixed |
SUSE Manager Proxy 4.0 | xen | Already fixed |
SUSE Manager Retail Branch Server 4.0 | xen | Already fixed |
SUSE Manager Server 4.0 | xen | Already fixed |
SUSE OpenStack Cloud 7 | xen | Released |
SUSE OpenStack Cloud 8 | xen | Released |
SUSE OpenStack Cloud 9 | xen | Already fixed |
SUSE OpenStack Cloud Crowbar 8 | xen | Released |
SUSE OpenStack Cloud Crowbar 9 | xen | Already fixed |
SUSE Timeline for this CVE
CVE page created: Tue Jul 31 18:00:28 2018CVE page last modified: Wed Oct 30 17:11:19 2024