Upstream information

CVE-2018-10901 at MITRE

Description

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.

SUSE information

Overall state of this security issue: Resolved

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 SUSE
Base Score 7.8 7.8
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3
SUSE Bugzilla entry: 1104936 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 High Performance Computing 15 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Already fixed
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-source Already fixed
SUSE Linux Enterprise Desktop 12 SP3 kernel-default Already fixed
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Already fixed
SUSE Linux Enterprise Desktop 15 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-default Already fixed
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP3 kernel-default Already fixed
SUSE Linux Enterprise Server 12 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Already fixed
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15 kernel-default Already fixed
SUSE Linux Enterprise Server 15 kernel-source Already fixed
SUSE Linux Enterprise Server 15-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Already fixed
SUSE OpenStack Cloud 8 kernel-source Already fixed
SUSE OpenStack Cloud Crowbar 8 kernel-source Already fixed


SUSE Timeline for this CVE

CVE page created: Tue Jul 24 17:45:10 2018
CVE page last modified: Fri Oct 13 20:04:04 2023