CVE-2018-10901

Name: CVE-2018-10901
Creator: NVD / NIST
Published: 2018-07-26T17:29:00.893+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2018-10901 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.52%

40.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-665

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.36
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server Aus	6.4
Redhat	Enterprise Linux Server Aus	6.5
Redhat	Enterprise Linux Server Aus	6.6
Redhat	Enterprise Linux Workstation	6.0

References

http://www.securityfocus.com/bid/104905Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2390Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2391Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2392Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2393Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2394Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36Patch, Vendor Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
http://www.securityfocus.com/bid/104905Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2390Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2391Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2392Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2393Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2394Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901Issue Tracking, Patch, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36Patch, Vendor Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory

Timeline

Published: Jul 26, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10901?

How severe is CVE-2018-10901?

CVE-2018-10901 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10901?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-10901?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST