Upstream information
Description
An issue was discovered in Xen 4.7 through 4.10.x. libxl fails to pass the readonly flag to qemu when setting up a SCSI disk, due to what was probably an erroneous merge conflict resolution. Malicious guest administrators or (in some situations) users may be able to write to supposedly read-only disk images. Only emulated SCSI disks (specified as "sd" in the libxl disk configuration, or an equivalent) are affected. IDE disks ("hd") are not affected (because attempts to make them readonly are rejected). Additionally, CDROM devices (that is, devices specified to be presented to the guest as CDROMs, regardless of the nature of the backing storage on the host) are not affected; they are always read only. Only systems using qemu-xen (rather than qemu-xen-traditional) as the device model version are vulnerable. Only systems using libxl or libxl-based toolstacks are vulnerable. (This includes xl, and libvirt with the libxl driver.) The vulnerability is present in Xen versions 4.7 and later. (In earlier versions, provided that the patch for XSA-142 has been applied, attempts to create read only disks are rejected.) If the host and guest together usually support PVHVM, the issue is exploitable only if the malicious guest administrator has control of the guest kernel or guest kernel command line.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 6.5 |
Vector | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Access Vector | Network |
Access Complexity | Low |
Authentication | Single |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 9.9 | 5.5 |
Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Attack Vector | Network | Local |
Attack Complexity | Low | Low |
Privileges Required | Low | Low |
User Interaction | None | None |
Scope | Changed | Unchanged |
Confidentiality Impact | High | None |
Integrity Impact | High | High |
Availability Impact | High | None |
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: 1097523 [RESOLVED / FIXED]
SUSE Security Advisories:
- SUSE-SU-2018:1981-1, published Tue Jul 17 13:07:52 MDT 2018
- SUSE-SU-2018:2059-1, published Wed Jul 25 07:14:04 MDT 2018
- SUSE-SU-2018:2081-1, published Fri Jul 27 10:07:58 MDT 2018
- SUSE-SU-2018:2081-2, published Thu Oct 18 12:06:57 MDT 2018
- openSUSE-SU-2018:2116-1, published Fri Dec 8 15:48:40 2023
- openSUSE-SU-2018:2211-1, published Fri Dec 8 15:48:40 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 Enterprise Storage 4 |
| Patchnames: SUSE-Storage-4-2018-1414 |
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-SP3-2018-1388 SUSE-SLE-SDK-12-SP3-2018-1388 |
SUSE Linux Enterprise Desktop 12 SP4 |
| Patchnames: SUSE Linux Enterprise Desktop 12 SP4 GA xen-4.11.0_08-1.11 SUSE Linux Enterprise Software Development Kit 12 SP4 GA xen-devel-4.11.0_08-1.11 |
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-15-2018-1342 |
SUSE Linux Enterprise High Performance Computing 12 SP5 |
| Patchnames: SUSE Linux Enterprise High Performance Computing 12 SP5 GA xen-4.12.1_06-1.1 |
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-15-2018-1342 SUSE-SLE-Module-Server-Applications-15-2018-1342 |
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-15-2018-1342 |
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT |
| Patchnames: SUSE-SLE-POS-12-SP2-CLIENT-2018-1414 |
SUSE Linux Enterprise Server 12 SP2-BCL |
| Patchnames: SUSE-SLE-SERVER-12-SP2-BCL-2018-1414 |
SUSE Linux Enterprise Server 12 SP2-ESPOS |
| Patchnames: SUSE-SLE-SERVER-12-SP2-ESPOS-2018-1414 |
SUSE Linux Enterprise Server 12 SP2-LTSS |
| Patchnames: SUSE-SLE-SERVER-12-SP2-2018-1414 |
SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3 |
| Patchnames: SUSE-SLE-SDK-12-SP3-2018-1388 SUSE-SLE-SERVER-12-SP3-2018-1388 |
SUSE Linux Enterprise Server 12 SP4 |
| Patchnames: SUSE Linux Enterprise Server 12 SP4 GA xen-4.11.0_08-1.11 SUSE Linux Enterprise Software Development Kit 12 SP4 GA xen-devel-4.11.0_08-1.11 |
SUSE Linux Enterprise Server 12 SP5 |
| Patchnames: SUSE Linux Enterprise Server 12 SP5 GA xen-4.12.1_06-1.1 SUSE Linux Enterprise Software Development Kit 12 SP5 GA xen-devel-4.12.1_06-1.1 |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 |
| Patchnames: SUSE-SLE-SAP-12-SP2-2018-1414 |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Software Development Kit 12 SP4 |
| Patchnames: SUSE Linux Enterprise Software Development Kit 12 SP4 GA xen-devel-4.11.0_08-1.11 |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5 |
| Patchnames: SUSE Linux Enterprise Software Development Kit 12 SP5 GA xen-devel-4.12.1_06-1.1 |
SUSE Linux Enterprise Software Development Kit 12 SP3 |
| Patchnames: SUSE-SLE-SDK-12-SP3-2018-1388 |
SUSE OpenStack Cloud 7 |
| Patchnames: SUSE-OpenStack-Cloud-7-2018-1414 |
openSUSE Leap 15.0 |
| Patchnames: openSUSE-2019-533 |
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 |
Products past their end of life and not receiving proactive updates anymore. | ||
HPE Helion OpenStack 8 | xen | Affected |
SUSE CaaS Platform 3.0 | xen | Affected |
SUSE Container as a Service Platform 2.0 | xen | Released |
SUSE Enterprise Storage 4 | xen | Released |
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 High Performance Computing 15 | xen | Released |
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 Server Applications 15 | xen | Released |
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 | Unsupported |
SUSE Linux Enterprise Server 12 SP3-ESPOS | xen | Unsupported |
SUSE Linux Enterprise Server 12 SP3-LTSS | xen | Unsupported |
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-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 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 OpenStack Cloud 7 | xen | Released |
SUSE OpenStack Cloud 8 | xen | Affected |
SUSE OpenStack Cloud 9 | xen | Already fixed |
SUSE OpenStack Cloud Crowbar 8 | xen | Affected |
SUSE OpenStack Cloud Crowbar 9 | xen | Already fixed |
SUSE Timeline for this CVE
CVE page created: Wed Jun 13 21:17:25 2018CVE page last modified: Mon Nov 18 13:50:56 2024