CVE-2017-12168

Medium

The access_pmu_evcntr function in arch/arm64/kvm/sys_regs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service (assertion failure and host OS crash) by accessing the Performance Monitors Cycle Count Register (PMCCNTR).

Package Linux Kernel
Published 2017-09-20
Last modified 2026-05-13
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

6.0

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

Weakness type

CWE-617

CVE-2017-12168 is classified as CWE-617

See CWE-617 on MITRE CWE for full details on this weakness type.

Frequently asked questions

  • What is CVE-2017-12168?

    CVE-2017-12168 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.0 out of 10 . CVE-2017-12168 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2017-12168?

    CVE-2017-12168 has a CVSS score of 6.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H .

  • Is there a patch available for CVE-2017-12168?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-12168 patch availability.

  • Is CVE-2017-12168 actively exploited?

    No. CVE-2017-12168 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.