Upstream information

CVE-2017-12188 at MITRE

Description

arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 6.9 6.5
Vector AV:L/AC:M/Au:N/C:C/I:C/A:C AV:A/AC:H/Au:S/C:C/I:C/A:C
Access Vector Local Adjacent Network
Access Complexity Medium High
Authentication None Single
Confidentiality Impact Complete Complete
Integrity Impact Complete Complete
Availability Impact Complete Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.8 7.6
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Access Vector Local Adjacent Network
Access Complexity High High
Privileges Required Low High
User Interaction None None
Scope Changed Changed
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3 3
SUSE Bugzilla entries: 1062604 [RESOLVED / FIXED], 1096566 [RESOLVED / UPSTREAM]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
SLES for SAP Applications kernel-source Not affected
SUSE Linux Enterprise 12 Module for Public Cloud kernel-ec2 Released
SUSE Linux Enterprise 15 Module for Basesystem kernel-source Already fixed
SUSE Linux Enterprise 15 Module for Development Tools kernel-source Already fixed
SUSE Linux Enterprise 15-SP1 Module for Basesystem kernel-source Analysis
SUSE Linux Enterprise 15-SP1 Module for Development Tools kernel-source Analysis
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Released
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 11 SP1 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP1 kvm Not affected
SUSE Linux Enterprise Server 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 kvm Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS kvm Not affected
SUSE Linux Enterprise Server 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4 kvm Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP1 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 BCL kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP3 kernel-source Released
SUSE Linux Enterprise Server 12 SP3 BCL kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP5 kernel-source Analysis
SUSE Linux Enterprise Server 15 LTSS kernel-source Analysis
SUSE Linux Enterprise Server ESPOS 15 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Analysis