Upstream information

CVE-2018-16882 at MITRE

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.

CVSS v2 Scores
  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
CVSS v3 Scores
  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 Bugzilla entry: 1119934 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
HPE Helion Openstack 8
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 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
  • cluster-md-kmp-default >= 4.4.180-94.150.1
  • dlm-kmp-default >= 4.4.180-94.150.1
  • gfs2-kmp-default >= 4.4.180-94.150.1
  • ocfs2-kmp-default >= 4.4.180-94.150.1
 Patchnames:
SUSE-SLE-HA-12-SP3-2021-3935
SUSE Linux Enterprise Server 12 SP2-BCL
  • kernel-default >= 4.4.121-92.161.1
  • kernel-default-base >= 4.4.121-92.161.1
  • kernel-default-devel >= 4.4.121-92.161.1
  • kernel-devel >= 4.4.121-92.161.1
  • kernel-macros >= 4.4.121-92.161.1
  • kernel-source >= 4.4.121-92.161.1
  • kernel-syms >= 4.4.121-92.161.1
 Patchnames:
SUSE-SLE-SERVER-12-SP2-BCL-2021-3929
SUSE Linux Enterprise Server 12 SP3-BCL
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
 Patchnames:
SUSE-SLE-SERVER-12-SP3-BCL-2021-3935
SUSE Linux Enterprise Server 12 SP3-ESPOS
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 Patchnames:
SUSE-SLE-SERVER-12-SP3-ESPOS-2021-3935
SUSE Linux Enterprise Server 12 SP3-LTSS
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-default-man >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 Patchnames:
SUSE-SLE-SERVER-12-SP3-2021-3935
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 Patchnames:
SUSE-SLE-SAP-12-SP3-2021-3935
SUSE OpenStack Cloud 8
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 Patchnames:
SUSE-OpenStack-Cloud-8-2021-3935
SUSE OpenStack Cloud Crowbar 8
  • kernel-default >= 4.4.180-94.150.1
  • kernel-default-base >= 4.4.180-94.150.1
  • kernel-default-devel >= 4.4.180-94.150.1
  • kernel-default-kgraft >= 4.4.180-94.150.1
  • kernel-devel >= 4.4.180-94.150.1
  • kernel-macros >= 4.4.180-94.150.1
  • kernel-source >= 4.4.180-94.150.1
  • kernel-syms >= 4.4.180-94.150.1
  • kgraft-patch-4_4_180-94_150-default >= 1-4.3.1
 Patchnames:
SUSE-OpenStack-Cloud-Crowbar-8-2021-3935

First public cloud image revisions this CVE is fixed in:

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