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Fencer Intel
medium 6.0

CVE-2017-12168 json

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…

published 9y ago modified 4mo ago also EUVD-2017-3744

cvss
6.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

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).

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.8.11-1

debian advisories DEBIAN-CVE-2017-12168

  • kernel-alt RHEL 7 4.11.0-44.el7a
  • perf RHEL 7 4.11.0-44.el7a
  • kernel RHEL 7 4.11.0-44.el7a
  • python-perf RHEL 7 4.11.0-44.el7a
  • kernel-tools RHEL 7 4.11.0-44.el7a
  • kernel-tools-libs RHEL 7 4.11.0-44.el7a
  • kernel-bootwrapper RHEL 7 4.11.0-44.el7a
  • kernel-abi-whitelists RHEL 7 4.11.0-44.el7a

red hat advisories RHEA-2017:3163

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-12168 updated cvss 6.2

Kernel: kvm: ARM64: assert failure when accessing PMCCNTR register

  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.11.0-44.el7a, kernel 4.11.0-44.el7a, kernel-alt 4.11.0-44.el7a, python-perf 4.11.0-44.el7a, kernel-tools 4.11.0-44.el7a, kernel-tools-libs 4.11.0-44.el7a, +4 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-aarch64 4.11.0-44.el7a, kernel-debuginfo-common-ppc64le 4.11.0-44.el7a
    fixed: vendor fix RHEA-2017:3163
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • n/a Linux kernel before 4.9

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.