Upstream information
Description
An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_vcpu_info is used by a guest to register a shared region with the hypervisor. The region will be mapped into Xen address space so it can be directly accessed. On Arm, the region is accessed with instructions that require a specific alignment. Unfortunately, there is no check that the address provided by the guest will be correctly aligned. As a result, a malicious guest could cause a hypervisor crash by passing a misaligned address. A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). All Xen versions are vulnerable. Only Arm systems are vulnerable. x86 systems are not affected.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 | |
|---|---|
| Base Score | 6.5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Changed |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Linux Enterprise Micro 5.1 | xen | Not affected |
| SUSE Linux Enterprise Micro 5.2 | xen | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 12 SP5 | 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 Module for Basesystem 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | 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 Server 12 SP5 | xen | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | 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-ESPOS | xen | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | 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 |
| 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 Container as a Service Platform 1.0 | xen | Unsupported |
| SUSE Container as a Service Platform 2.0 | xen | Not affected |
| SUSE Enterprise Storage 6 | xen | Not affected |
| SUSE Enterprise Storage 7 | xen | Not affected |
| SUSE Enterprise Storage 7.1 | xen | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | 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 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-ESPOS | xen | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | 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 Point of Sale 12 SP2-CLIENT | xen | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | xen | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | xen | Not affected |
| SUSE Linux Enterprise Server 11 SP4 | xen | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | xen | Not affected |
| SUSE Linux Enterprise Server 11 SP4-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 11 SP4 | 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 11 SP4 | 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 Linux Enterprise Software Development Kit 12 SP5 | 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 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 |
| openSUSE Leap 15.3 | xen | Not affected |
| openSUSE Leap Micro 5.2 | xen | Not affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Linux Enterprise Server LTSS Extended Security 12-SP5 | xen | Not affected |
SUSE Timeline for this CVE
CVE page created: Thu Jun 25 18:27:11 2020CVE page last modified: Tue Nov 12 19:27:07 2024