CVE-2017-12154

High

The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.

Package Linux Kernel
Published 2017-09-26
Last modified 2026-05-13
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

7.1

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

11 total
Showing 5 of 11 references View all on NVD

Frequently asked questions

  • What is CVE-2017-12154?

    CVE-2017-12154 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2017-12154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2017-12154?

    CVE-2017-12154 has a CVSS score of 7.1 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:N .

  • Is there a patch available for CVE-2017-12154?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-12154 patch availability.

  • Is CVE-2017-12154 actively exploited?

    No. CVE-2017-12154 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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