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Fencer Intel
medium 5.5

CVE-2017-12192 json

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not proper…

published 9y ago modified 4mo ago also EUVD-2017-3767

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.13.4-2

debian advisories DEBIAN-CVE-2017-12192

  • linux Ubuntu 14.04 LTS 3.13.0-142.191
  • linux Ubuntu 16.04 LTS 4.4.0-98.121
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1039.48
  • linux-gcp Ubuntu 16.04 LTS 4.13.0-1002.5
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1033.33
  • linux-hwe Ubuntu 16.04 LTS 4.13.0-32.35~16.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1009.14
  • linux-azure Ubuntu 16.04 LTS 4.13.0-1005.7

ubuntu advisories UBUNTU-CVE-2017-12192

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-alt RHEL 7 4.14.0-49.el7a
  • perf RHEL 7 4.14.0-49.el7a
  • kernel RHEL 7 4.14.0-49.el7a
  • python-perf RHEL 7 4.14.0-49.el7a
  • kernel-kdump RHEL 7 4.14.0-49.el7a
  • kernel-tools RHEL 7 4.14.0-49.el7a
  • kernel-tools-libs RHEL 7 4.14.0-49.el7a
  • kernel-bootwrapper RHEL 7 4.14.0-49.el7a

red hat advisories RHSA-2018:0654RHSA-2020:2430RHSA-2018:0181RHSA-2018:0152RHSA-2018:0151

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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-2017-12192 updated cvss 5.5

kernel: NULL pointer dereference due to KEYCTL_READ on negative key

  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-693.17.1.el7, kernel 3.10.0-693.17.1.el7, python-perf 3.10.0-693.17.1.el7, kernel-tools 3.10.0-693.17.1.el7, kernel-tools-libs 3.10.0-693.17.1.el7, kernel-abi-whitelists 3.10.0-693.17.1.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.17.1.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-693.17.1.el7, kernel 3.10.0-693.17.1.el7, python-perf 3.10.0-693.17.1.el7, kernel-tools 3.10.0-693.17.1.el7, kernel-tools-libs 3.10.0-693.17.1.el7, kernel-abi-whitelists 3.10.0-693.17.1.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.17.1.el7
    fixed: vendor fix RHSA-2018:0151
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.30.2.el6, kernel 2.6.32-754.30.2.el6, kernel-firmware 2.6.32-754.30.2.el6, kernel-abi-whitelists 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-49.el7a, kernel 4.14.0-49.el7a, kernel-alt 4.14.0-49.el7a, python-perf 4.14.0-49.el7a, kernel-kdump 4.14.0-49.el7a, kernel-tools 4.14.0-49.el7a, +6 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-aarch64 4.14.0-49.el7a, kernel-debuginfo-common-ppc64le 4.14.0-49.el7a
    fixed: vendor fix RHSA-2018:0654
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-693.17.1.rt56.636.el7, kernel-rt-kvm 3.10.0-693.17.1.rt56.636.el7, kernel-rt-trace 3.10.0-693.17.1.rt56.636.el7, kernel-rt-debug-kvm 3.10.0-693.17.1.rt56.636.el7, kernel-rt-trace-kvm 3.10.0-693.17.1.rt56.636.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.17.1.rt56.636.el7
    fixed: vendor fix RHSA-2018:0152
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.30.2.el6, kernel 2.6.32-754.30.2.el6, kernel-firmware 2.6.32-754.30.2.el6, kernel-abi-whitelists 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-693.17.1.rt56.636.el7, kernel-rt-trace 3.10.0-693.17.1.rt56.636.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.17.1.rt56.636.el7
    fixed: vendor fix RHSA-2018:0152
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.30.2.el6, kernel 2.6.32-754.30.2.el6, kernel-kdump 2.6.32-754.30.2.el6, kernel-firmware 2.6.32-754.30.2.el6, kernel-bootwrapper 2.6.32-754.30.2.el6, kernel-abi-whitelists 2.6.32-754.30.2.el6, +4 more
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-693.17.1.el7, kernel 3.10.0-693.17.1.el7, python-perf 3.10.0-693.17.1.el7, kernel-kdump 3.10.0-693.17.1.el7, kernel-tools 3.10.0-693.17.1.el7, kernel-tools-libs 3.10.0-693.17.1.el7, +6 more
    fixed: vendor fix RHSA-2018:0151
show 8 more
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-ppc64 2.6.32-754.30.2.el6, kernel-debuginfo-common-s390x 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-693.17.1.el7, kernel-debuginfo-common-x86_64 3.10.0-693.17.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.17.1.el7
    fixed: vendor fix RHSA-2018:0151
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-754.30.2.el6, kernel 2.6.32-754.30.2.el6, kernel-firmware 2.6.32-754.30.2.el6, kernel-abi-whitelists 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-693.17.1.el7, kernel 3.10.0-693.17.1.el7, python-perf 3.10.0-693.17.1.el7, kernel-tools 3.10.0-693.17.1.el7, kernel-tools-libs 3.10.0-693.17.1.el7, kernel-abi-whitelists 3.10.0-693.17.1.el7, +1 more
    fixed: vendor fix RHSA-2018:0151
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-754.30.2.el6, kernel-debuginfo-common-i686 2.6.32-754.30.2.el6, kernel-debuginfo-common-x86_64 2.6.32-754.30.2.el6
    fixed: vendor fix RHSA-2020:2430
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.17.1.el7
    fixed: vendor fix RHSA-2018:0151
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-trace 3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-vanilla 3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-firmware 3.10.0-693.17.1.rt56.604.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.17.1.rt56.604.el6rt
    fixed: vendor fix RHSA-2018:0181
  • Red Hat Enterprise Linux 5 kernel
    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

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

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.