CVE-2018-10901

High

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.

Package Linux Kernel
Published 2018-07-26
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-665

CVE-2018-10901 is classified as CWE-665

See CWE-665 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2018-10901 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2018-10901?

    CVE-2018-10901 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2018-10901 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-10901?

    CVE-2018-10901 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2018-10901?

    No patch is currently available for CVE-2018-10901. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2018-10901 actively exploited?

    No — CVE-2018-10901 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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