CVE-2018-10853

High

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

Package Linux Kernel
Published 2018-09-11
Last modified 2024-11-21
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-250

CVE-2018-10853 is classified as CWE-250

See CWE-250 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2018-10853 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

4 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2018-10853?

    CVE-2018-10853 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2018-10853 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-10853?

    CVE-2018-10853 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2018-10853?

    No patch is currently available for CVE-2018-10853. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2018-10853 actively exploited?

    No — CVE-2018-10853 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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