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Fencer Vulns
medium 6.7

CVE-2017-18551 json

An issue was discovered in drivers/i2c/i2c-core-smbus.c in the Linux kernel before 4.14.15.

published 2019-08-19 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-9667

cvss
6.7
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 37%
public exploits
0
none known

Summary

An issue was discovered in drivers/i2c/i2c-core-smbus.c in the Linux kernel before 4.14.15. There is an out of bounds write in the function i2c_smbus_xfer_emulated.

Patch / fix

  • linux linux_kernel 4.14.15
  • linux Debian 14, Debian 13, Debian 12 4.14.17-1

debian advisories DEBIAN-CVE-2017-18551

  • linux Ubuntu 16.04 LTS 4.4.0-150.176
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1084.94
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1014.14~16.04.1
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-24.26~16.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1047.53
  • linux-azure Ubuntu 16.04 LTS 4.15.0-1013.13~16.04.2
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1110.118
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1114.119

ubuntu advisories UBUNTU-CVE-2017-18551

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 4.14.0-115.21.2.el7a
  • perf RHEL 7 4.14.0-115.21.2.el7a
  • kernel RHEL 7 4.14.0-115.21.2.el7a
  • python-perf RHEL 7 4.14.0-115.21.2.el7a
  • kernel-tools RHEL 7 4.14.0-115.21.2.el7a
  • kernel-tools-libs RHEL 7 4.14.0-115.21.2.el7a
  • kernel-bootwrapper RHEL 7 4.14.0-115.21.2.el7a
  • kernel-abi-whitelists RHEL 7 4.14.0-115.21.2.el7a

red hat advisories RHSA-2020:2104RHSA-2020:4060RHSA-2020:4062RHSA-2020:5656RHSA-2020:5206RHSA-2020:5430

  • kernel-syms SLES for SAP 12 SP3, SLES 12 SP3-LTSS, SLES 12 SP3-BCL +4 more 4.4.180-94.107.1
  • kernel-source SLES for SAP 12 SP3, SLES 12 SP3-LTSS, SLES 12 SP3-BCL +4 more 4.4.180-94.107.1
  • kernel-default SLES for SAP 12 SP3, SLES 12 SP3-LTSS, SLES 12 SP3-BCL +5 more 4.4.180-94.107.1
  • kgraft-patch-SLE12-SP3_Update_29 SLES for SAP 12 SP3, SLES 12 SP3-LTSS, OpenStack Cloud Crowbar 8 +3 more 1-4.3.1
  • ocfs2 SLE High Availability Extension 11 SP4 1.6-0.28.11.2
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.124.1
  • kernel-rt SLE Real Time 12 SP4 4.12.14-8.6.1
  • kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.6.1

suse advisories SUSE-SU-2019:2949-1SUSE-SU-2019:14218-1SUSE-SU-2019:2950-1SUSE-SU-2019:2756-1SUSE-SU-2019:2738-1SUSE-SU-2019:2658-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.73.1

opensuse advisories openSUSE-SU-2019:2181-1openSUSE-SU-2019:2173-1

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-2017-18551 updated cvss 6.7

kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise MRG 2 kernel
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perf 3.10.0-957.65.1.el7, kernel 3.10.0-957.65.1.el7, bpftool 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7, kernel-tools 3.10.0-957.65.1.el7, kernel-tools-libs 3.10.0-957.65.1.el7, +2 more
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) perf 3.10.0-1062.40.1.el7, kernel 3.10.0-1062.40.1.el7, bpftool 3.10.0-1062.40.1.el7, python-perf 3.10.0-1062.40.1.el7, kernel-tools 3.10.0-1062.40.1.el7, kernel-tools-libs 3.10.0-1062.40.1.el7, +2 more
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.40.1.el7
    fixed: vendor fix RHSA-2020:5206
show 14 more
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.21.2.el7a, kernel 4.14.0-115.21.2.el7a, kernel-alt 4.14.0-115.21.2.el7a, python-perf 4.14.0-115.21.2.el7a, kernel-tools 4.14.0-115.21.2.el7a, kernel-tools-libs 4.14.0-115.21.2.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.21.2.el7a
    fixed: vendor fix RHSA-2020:2104
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debug-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7
    fixed: vendor fix RHSA-2020:4062
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-kdump 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, +7 more
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Server AUS (v. 7.4) perf 3.10.0-693.81.1.el7, kernel 3.10.0-693.81.1.el7, python-perf 3.10.0-693.81.1.el7, kernel-tools 3.10.0-693.81.1.el7, kernel-tools-libs 3.10.0-693.81.1.el7, kernel-abi-whitelists 3.10.0-693.81.1.el7, +1 more Red Hat Enterprise Linux Server E4S (v. 7.4) perf 3.10.0-693.81.1.el7, kernel 3.10.0-693.81.1.el7, python-perf 3.10.0-693.81.1.el7, kernel-tools 3.10.0-693.81.1.el7, kernel-tools-libs 3.10.0-693.81.1.el7, kernel-bootwrapper 3.10.0-693.81.1.el7, +3 more
    fixed: vendor fix RHSA-2020:5430
  • Red Hat Enterprise Linux Server EUS (v. 7.6) perf 3.10.0-957.65.1.el7, kernel 3.10.0-957.65.1.el7, bpftool 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7, kernel-kdump 3.10.0-957.65.1.el7, kernel-tools 3.10.0-957.65.1.el7, +7 more
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux Server EUS (v. 7.7) perf 3.10.0-1062.40.1.el7, kernel 3.10.0-1062.40.1.el7, bpftool 3.10.0-1062.40.1.el7, python-perf 3.10.0-1062.40.1.el7, kernel-kdump 3.10.0-1062.40.1.el7, kernel-tools 3.10.0-1062.40.1.el7, +7 more
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.81.1.el7 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.81.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.81.1.el7
    fixed: vendor fix RHSA-2020:5430
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debuginfo-common-ppc64 3.10.0-957.65.1.el7, kernel-debuginfo-common-x86_64 3.10.0-957.65.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debuginfo-common-ppc64 3.10.0-1062.40.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.40.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.40.1.el7
    fixed: vendor fix RHSA-2020:5206
  • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.81.1.el7 Red Hat Enterprise Linux Server TUS (v. 7.4) perf 3.10.0-693.81.1.el7, kernel 3.10.0-693.81.1.el7, python-perf 3.10.0-693.81.1.el7, kernel-tools 3.10.0-693.81.1.el7, kernel-tools-libs 3.10.0-693.81.1.el7, kernel-abi-whitelists 3.10.0-693.81.1.el7, +1 more
    fixed: vendor fix RHSA-2020:5430
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix RHSA-2020:4060
  • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS perf 3.10.0-957.65.1.el7, python-perf 3.10.0-957.65.1.el7
    fixed: vendor fix RHSA-2020:5656
  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) kernel-headers 3.10.0-1062.40.1.el7 Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-headers 3.10.0-693.81.1.el7 Red Hat Enterprise Linux Server E4S (v. 7.4) kernel-headers 3.10.0-693.81.1.el7 Red Hat Enterprise Linux Server EUS (v. 7.7) kernel-headers 3.10.0-1062.40.1.el7 Red Hat Enterprise Linux Server TUS (v. 7.4) kernel-headers 3.10.0-693.81.1.el7
    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

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

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.