CVE-2018-10901

HighCVSS 7.8/10Last modified Jun 17, 2026

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 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-665

Affected software

No affected versions have been published.

Timeline

Published: Jul 26, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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