Upstream information
Description
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable.SUSE information
Overall state of this security issue: Running
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 7.2 |
Vector | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Access Vector | Local |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | Complete |
Integrity Impact | Complete |
Availability Impact | Complete |
National Vulnerability Database | |
---|---|
Base Score | 8.8 |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Access Vector | Local |
Access Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Changed |
Confidentiality Impact | High |
Integrity Impact | High |
Availability Impact | High |
CVSSv3 Version | 3 |
- SUSE-SU-2021:3929-1, published Mon Dec 6 14:33:41 UTC 2021
- SUSE-SU-2021:3935-1, published Mon Dec 6 18:09:14 UTC 2021
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
HPE Helion Openstack 8 |
| Patchnames: HPE-Helion-OpenStack-8-2021-3935 |
SUSE Linux Enterprise High Availability 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise Server 12 SP3 |
| Patchnames: SUSE-SLE-HA-12-SP3-2021-3935 |
SUSE Linux Enterprise Server 12 SP2-BCL |
| Patchnames: SUSE-SLE-SERVER-12-SP2-BCL-2021-3929 |
SUSE Linux Enterprise Server 12 SP3-BCL |
| Patchnames: SUSE-SLE-SERVER-12-SP3-BCL-2021-3935 |
SUSE Linux Enterprise Server 12 SP3-ESPOS |
| Patchnames: SUSE-SLE-SERVER-12-SP3-ESPOS-2021-3935 |
SUSE Linux Enterprise Server 12 SP3-LTSS |
| Patchnames: SUSE-SLE-SERVER-12-SP3-2021-3935 |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 |
| Patchnames: SUSE-SLE-SAP-12-SP3-2021-3935 |
SUSE OpenStack Cloud 8 |
| Patchnames: SUSE-OpenStack-Cloud-8-2021-3935 |
SUSE OpenStack Cloud Crowbar 8 |
| Patchnames: SUSE-OpenStack-Cloud-Crowbar-8-2021-3935 |
First public cloud image revisions this CVE is fixed in:
- amazon/suse-sles-12-sp3-byos-v20220128-hvm-ssd-x86_64
- amazon/suse-sles-sap-12-sp3-byos-v20220128-hvm-ssd-x86_64
- amazon/suse-sles-sap-12-sp3-v20220304-hvm-ssd-x86_64
- google/sles-12-sp3-byos-v20220126
- google/sles-12-sp3-sap-byos-v20220126
- google/sles-12-sp3-sap-v20220126
- microsoft/suse-sles-12-sp3-byos-v20220128
- microsoft/suse-sles-sap-12-sp3-byos-v20220128
- microsoft/suse-sles-sap-12-sp3-v20220127
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 | kernel-default | Released |
HPE Helion OpenStack 8 | kernel-source | Released |
SLES for SAP Applications | kernel-default | Not affected |
SLES for SAP Applications | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP3 | kernel-default | Not affected |
SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP4 | kernel-default | Not affected |
SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 15 | kernel-default | Not affected |
SUSE Linux Enterprise Desktop 15 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP4 | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise High Performance Computing 15 | kernel-default | Not affected |
SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 | kernel-default | Not affected |
SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP1 | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP1 | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP3 | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP3 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP3 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2 BCL | kernel-default | Released |
SUSE Linux Enterprise Server 12 SP2 BCL | kernel-source | Released |
SUSE Linux Enterprise Server 12 SP2 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP2 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP3 | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP3 | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP3 BCL | kernel-default | Released |
SUSE Linux Enterprise Server 12 SP3 BCL | kernel-source | Released |
SUSE Linux Enterprise Server 12 SP3 ESPOS | kernel-default | Released |
SUSE Linux Enterprise Server 12 SP3 ESPOS | kernel-source | Released |
SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-default | Released |
SUSE Linux Enterprise Server 12 SP3 LTSS | kernel-source | Released |
SUSE Linux Enterprise Server 12 SP4 | kernel-default | Not affected |
SUSE Linux Enterprise Server 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server 15 | kernel-default | Not affected |
SUSE Linux Enterprise Server 15 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-default | Released |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Released |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 | kernel-default | Not affected |
SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Not affected |
SUSE OpenStack Cloud 8 | kernel-default | Released |
SUSE OpenStack Cloud 8 | kernel-source | Released |
SUSE OpenStack Cloud Crowbar 8 | kernel-default | Released |
SUSE OpenStack Cloud Crowbar 8 | kernel-source | Released |