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Fencer Vulns
high 7.8

CVE-2017-18079 json

drivers/input/serio/i8042.c in the Linux kernel before 4.12.4 allows attackers to cause a denial of service (NULL pointer dereference and s…

published 2018-01-29 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9216

cvss
7.8
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

drivers/input/serio/i8042.c in the Linux kernel before 4.12.4 allows attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated.

Patch / fix

  • linux linux_kernel 3.2.94, 3.16.49, 3.18.63, 4.1.44, 4.4.79, 4.9.40, 4.12.4
  • linux Debian 14, Debian 13, Debian 12 4.12.6-1

debian advisories DEBIAN-CVE-2017-18079

  • linux Ubuntu 14.04 LTS 3.13.0-149.199
  • linux Ubuntu 16.04 LTS 4.4.0-93.116
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1032.41
  • linux-gcp Ubuntu 16.04 LTS 4.13.0-1002.5
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1028.28
  • linux-hwe Ubuntu 16.04 LTS 4.13.0-32.35~16.04.1
  • linux-azure Ubuntu 16.04 LTS 4.13.0-1005.7
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1071.79

ubuntu advisories UBUNTU-CVE-2017-18079

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-rt SLE Real Time 11 SP4 3.0.101.rt130-69.21.1
  • kernel-syms-rt SLE Real Time 11 SP4 3.0.101.rt130-69.21.1
  • kernel-rt_trace SLE Real Time 11 SP4 3.0.101.rt130-69.21.1
  • kernel-source-rt SLE Real Time 11 SP4 3.0.101.rt130-69.21.1
  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.19.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.19.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.19.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.19.1

suse advisories SUSE-SU-2018:0841-1SUSE-SU-2018:0660-1SUSE-SU-2018:0555-1SUSE-SU-2018:0525-1SUSE-SU-2018:0437-1

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-2017-18079 updated cvss 5.5

kernel: Null pointer dereference in drivers/input/serio/i8042.c leading to denial-of-service

  • 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 kernel, bpftool, kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-core, kernel-tools, python3-perf, +17 more
    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, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns 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.