Upstream information
Description
Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads require SSBD active in order to coordinate it, such logic relies on using a per-core counter of threads that have SSBD active. When running on the mentioned hardware, it's possible for a guest to under or overflow the thread counter, because each write to VIRT_SPEC_CTRL.SSBD by the guest gets propagated to the helper that does the per-core active accounting. Underflowing the counter causes the value to get saturated, and thus attempts for guests running on the same core to set SSBD won't have effect because the hypervisor assumes it's already active.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having low severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 3.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | Low |
| Availability Impact | None |
| CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2023:2535-1, published Mon Jun 19 08:30:29 UTC 2023
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| Image SLES15-SP5-Azure-Basic Image SLES15-SP5-Azure-Standard Image SLES15-SP5-BYOS-Azure Image SLES15-SP5-BYOS-GCE Image SLES15-SP5-CHOST-BYOS-Aliyun Image SLES15-SP5-CHOST-BYOS-Azure Image SLES15-SP5-CHOST-BYOS-GCE Image SLES15-SP5-CHOST-BYOS-SAP-CCloud Image SLES15-SP5-GCE Image SLES15-SP5-HPC-Azure Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-HPC-GCE Image SLES15-SP5-Hardened-BYOS-Azure Image SLES15-SP5-Hardened-BYOS-GCE Image SLES15-SP5-Micro-5-5 Image SLES15-SP5-Micro-5-5-Azure Image SLES15-SP5-Micro-5-5-BYOS-Azure Image SLES15-SP5-Micro-5-5-BYOS-GCE Image SLES15-SP5-Micro-5-5-GCE Image SLES15-SP5-SAP-Azure Image SLES15-SP5-SAP-Azure-LI-BYOS Image SLES15-SP5-SAP-Azure-LI-BYOS-Production Image SLES15-SP5-SAP-Azure-VLI-BYOS Image SLES15-SP5-SAP-Azure-VLI-BYOS-Production Image SLES15-SP5-SAP-BYOS-Azure Image SLES15-SP5-SAP-BYOS-GCE Image SLES15-SP5-SAP-GCE Image SLES15-SP5-SAP-Hardened-Azure Image SLES15-SP5-SAP-Hardened-BYOS-Azure Image SLES15-SP5-SAP-Hardened-BYOS-GCE Image SLES15-SP5-SAP-Hardened-GCE Image SLES15-SP5-SAPCAL-Azure Image SLES15-SP5-SAPCAL-GCE |
| |
| Image SLES15-SP5-BYOS-EC2 Image SLES15-SP5-CHOST-BYOS-EC2 Image SLES15-SP5-EC2 Image SLES15-SP5-EC2-ECS-HVM Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-EC2 Image SLES15-SP5-Hardened-BYOS-EC2 Image SLES15-SP5-Micro-5-5-BYOS Image SLES15-SP5-Micro-5-5-BYOS-EC2 Image SLES15-SP5-Micro-5-5-EC2 Image SLES15-SP5-SAP-BYOS-EC2 Image SLES15-SP5-SAP-EC2 Image SLES15-SP5-SAP-Hardened-BYOS-EC2 Image SLES15-SP5-SAP-Hardened-EC2 Image SLES15-SP5-SAPCAL-EC2 |
| |
| SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise Module for Basesystem 15 SP5 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-SP5-2023-2535 |
| SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-SP5-2023-2535 SUSE-SLE-Module-Server-Applications-15-SP5-2023-2535 |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 |
| Patchnames: SUSE-SLE-Module-Server-Applications-15-SP5-2023-2535 |
| openSUSE Leap 15.5 |
| Patchnames: openSUSE-SLE-15.5-2023-2535 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA xen-4.17.1_04-1.1 |
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. 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 general support and receiving all security fixes. | ||
| SUSE Enterprise Storage 7.1 | xen | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | xen | Released |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | xen | Released |
| SUSE Linux Enterprise Micro 5.1 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.2 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.3 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.4 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.5 | xen | Affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | xen | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | xen | Released |
| SUSE Linux Enterprise Real Time 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | xen | Released |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | xen | Released |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | Not affected |
| SUSE Manager Proxy 4.3 | xen | Not affected |
| SUSE Manager Retail Branch Server 4.3 | xen | Not affected |
| SUSE Manager Server 4.3 | xen | Not affected |
| openSUSE Leap 15.5 | xen | Released |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | xen | Not affected |
| SUSE OpenStack Cloud 8 | xen | Not affected |
| SUSE OpenStack Cloud 9 | xen | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | xen | Not affected |
| SUSE CaaS Platform 3.0 | xen | Not affected |
| SUSE CaaS Platform 4.0 | xen | Not affected |
| SUSE Enterprise Storage 6 | xen | Not affected |
| SUSE Enterprise Storage 7 | xen | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | xen | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | xen | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | xen | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | xen | Not affected |
| SUSE Linux Enterprise Desktop 15 | xen | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.0 | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 | xen | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | 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 | 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 15 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | xen | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | xen | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | xen | Not affected |
| 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 15 | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | xen | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | xen | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | xen | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | xen | Not affected |
| SUSE Manager Proxy 4.0 | xen | Not affected |
| SUSE Manager Proxy 4.1 | xen | Not affected |
| SUSE Manager Proxy 4.2 | xen | Not affected |
| SUSE Manager Retail Branch Server 4.0 | xen | Not affected |
| SUSE Manager Retail Branch Server 4.1 | xen | Not affected |
| SUSE Manager Retail Branch Server 4.2 | xen | Not affected |
| SUSE Manager Server 4.0 | xen | Not affected |
| SUSE Manager Server 4.1 | xen | Not affected |
| SUSE Manager Server 4.2 | xen | Not affected |
| SUSE OpenStack Cloud 7 | xen | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | xen | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | xen | Not affected |
SUSE Timeline for this CVE
CVE page created: Tue May 16 17:45:20 2023CVE page last modified: Wed Apr 24 19:04:02 2024