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Fencer Vulns
medium 5.5

CVE-2017-14106 json

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select…

published 2017-09-01 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5618

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 38%
public exploits
0
none known

Summary

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select_window divide-by-zero error and system crash) by triggering a disconnect within a certain tcp_recvmsg code path.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.12.6-1

debian advisories DEBIAN-CVE-2017-14106

  • linux Ubuntu 14.04 LTS 3.13.0-133.182
  • linux Ubuntu 16.04 LTS 4.4.0-97.120
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1038.47
  • linux-gcp Ubuntu 16.04 LTS 4.10.0-1007.7
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1032.32
  • linux-hwe Ubuntu 16.04 LTS 4.10.0-37.41~16.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1008.13
  • linux-azure Ubuntu 16.04 LTS 4.13.0-1005.7

ubuntu advisories UBUNTU-CVE-2017-14106

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 enterprise mrg 2 1:3.10.0-693.5.2.rt56.592.el6rt
  • kernel-rt-trace enterprise mrg 2 1:3.10.0-693.5.2.rt56.592.el6rt
  • kernel-rt-vanilla enterprise mrg 2 1:3.10.0-693.5.2.rt56.592.el6rt
  • kernel-rt-firmware enterprise mrg 2 1:3.10.0-693.5.2.rt56.592.el6rt
  • kernel-rt-debuginfo-common-x86_64 enterprise mrg 2 1:3.10.0-693.5.2.rt56.592.el6rt
  • kernel-rt RHEL 7 EXTRAS_RT 3.10.0-693.5.2.rt56.626.el7
  • kernel-rt-kvm RHEL 7 EXTRAS_RT 3.10.0-693.5.2.rt56.626.el7
  • kernel-rt-trace RHEL 7 EXTRAS_RT 3.10.0-693.5.2.rt56.626.el7

red hat advisories RHSA-2018:2172RHSA-2017:2918RHSA-2017:2931RHSA-2017:2930RHSA-2017:3200

  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-69.14.1
  • kernel-syms-rt SLE Real Time 11 SP4 3.0.101.rt130-69.14.1
  • kernel-rt_trace SLE Real Time 11 SP4 3.0.101.rt130-69.14.1
  • kernel-source-rt SLE Real Time 11 SP4 3.0.101.rt130-69.14.1
  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.11.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.11.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.11.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.11.1

suse advisories SUSE-SU-2018:0180-1SUSE-SU-2018:0040-1SUSE-SU-2018:0011-1SUSE-SU-2017:2956-1SUSE-SU-2017:2920-1SUSE-SU-2017:2908-1

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-2017-14106 updated cvss 5.5

kernel: Divide-by-zero in __tcp_select_window

  • Red Hat Enterprise Linux 7 perf, kernel, python-perf, kernel-kdump, kernel-tools, kernel-tools-libs, +2 more
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-693.5.2.el7, kernel 3.10.0-693.5.2.el7, python-perf 3.10.0-693.5.2.el7, kernel-tools 3.10.0-693.5.2.el7, kernel-tools-libs 3.10.0-693.5.2.el7, kernel-abi-whitelists 3.10.0-693.5.2.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.5.2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-693.5.2.el7, kernel 3.10.0-693.5.2.el7, python-perf 3.10.0-693.5.2.el7, kernel-tools 3.10.0-693.5.2.el7, kernel-tools-libs 3.10.0-693.5.2.el7, kernel-abi-whitelists 3.10.0-693.5.2.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.5.2.el7
    fixed: vendor fix RHSA-2017:2930
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-696.16.1.el6, kernel 2.6.32-696.16.1.el6, kernel-firmware 2.6.32-696.16.1.el6, kernel-abi-whitelists 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6
    fixed: vendor fix RHSA-2017:3200
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-693.5.2.rt56.626.el7, kernel-rt-kvm 3.10.0-693.5.2.rt56.626.el7, kernel-rt-trace 3.10.0-693.5.2.rt56.626.el7, kernel-rt-debug-kvm 3.10.0-693.5.2.rt56.626.el7, kernel-rt-trace-kvm 3.10.0-693.5.2.rt56.626.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.5.2.rt56.626.el7
    fixed: vendor fix RHSA-2017:2931
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-696.16.1.el6, kernel 2.6.32-696.16.1.el6, kernel-firmware 2.6.32-696.16.1.el6, kernel-abi-whitelists 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6
    fixed: vendor fix RHSA-2017:3200
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-693.5.2.rt56.626.el7, kernel-rt-trace 3.10.0-693.5.2.rt56.626.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-693.5.2.rt56.626.el7
    fixed: vendor fix RHSA-2017:2931
  • Red Hat Enterprise Linux Server (v. 5 ELS) kernel 2.6.18-433.el5, kernel-PAE 2.6.18-433.el5, kernel-xen 2.6.18-433.el5, kernel-kdump 2.6.18-433.el5, kernel-debuginfo-common 2.6.18-433.el5
    fixed: vendor fix RHSA-2018:2172
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-696.16.1.el6, kernel 2.6.32-696.16.1.el6, kernel-kdump 2.6.32-696.16.1.el6, kernel-firmware 2.6.32-696.16.1.el6, kernel-bootwrapper 2.6.32-696.16.1.el6, kernel-abi-whitelists 2.6.32-696.16.1.el6, +4 more
    fixed: vendor fix RHSA-2017:3200
show 8 more
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-693.5.2.el7, kernel 3.10.0-693.5.2.el7, python-perf 3.10.0-693.5.2.el7, kernel-kdump 3.10.0-693.5.2.el7, kernel-tools 3.10.0-693.5.2.el7, kernel-tools-libs 3.10.0-693.5.2.el7, +6 more
    fixed: vendor fix RHSA-2017:2930
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-ppc64 2.6.32-696.16.1.el6, kernel-debuginfo-common-s390x 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6
    fixed: vendor fix RHSA-2017:3200
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-693.5.2.el7, kernel-debuginfo-common-x86_64 3.10.0-693.5.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.5.2.el7
    fixed: vendor fix RHSA-2017:2930
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-696.16.1.el6, kernel 2.6.32-696.16.1.el6, kernel-firmware 2.6.32-696.16.1.el6, kernel-abi-whitelists 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6
    fixed: vendor fix RHSA-2017:3200
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-693.5.2.el7, kernel 3.10.0-693.5.2.el7, python-perf 3.10.0-693.5.2.el7, kernel-tools 3.10.0-693.5.2.el7, kernel-tools-libs 3.10.0-693.5.2.el7, kernel-abi-whitelists 3.10.0-693.5.2.el7, +1 more
    fixed: vendor fix RHSA-2017:2930
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-696.16.1.el6, kernel-debuginfo-common-i686 2.6.32-696.16.1.el6, kernel-debuginfo-common-x86_64 2.6.32-696.16.1.el6
    fixed: vendor fix RHSA-2017:3200
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-693.5.2.el7
    fixed: vendor fix RHSA-2017:2930
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.5.2.rt56.592.el6rt, kernel-rt-trace 3.10.0-693.5.2.rt56.592.el6rt, kernel-rt-vanilla 3.10.0-693.5.2.rt56.592.el6rt, kernel-rt-firmware 3.10.0-693.5.2.rt56.592.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.5.2.rt56.592.el6rt
    fixed: vendor fix RHSA-2017:2918

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 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

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 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.