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Fencer Vulns
high 7.8

CVE-2016-4565 json

The InfiniBand (aka IB) stack in the Linux kernel before 4.5.3 incorrectly relies on the write system call, which allows local users to cau…

published 2016-05-23 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5552

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

The InfiniBand (aka IB) stack in the Linux kernel before 4.5.3 incorrectly relies on the write system call, which allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a uAPI interface.

Patch / fix

  • linux linux_kernel 3.2.81, 3.10.103, 3.12.61, 3.14.76, 3.16.36, 3.18.34, 4.1.25, 4.4.9, 4.5.3
  • linux Debian 14, Debian 13, Debian 12 4.5.3-1

debian advisories DEBIAN-CVE-2016-4565

  • linux Ubuntu 14.04 LTS 3.13.0-91.138
  • linux Ubuntu 16.04 LTS 4.4.0-24.43
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1012.16
  • linux-lts-wily Ubuntu 14.04 LTS 4.2.0-38.45~14.04.1
  • linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-61.69~14.04.1
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-76.98~14.04.1
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-24.43~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1015.18

ubuntu advisories UBUNTU-CVE-2016-4565

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 1:3.10.0-327.rt56.190.el6rt
  • kernel-rt-trace enterprise mrg 2 1:3.10.0-327.rt56.190.el6rt
  • kernel-rt-vanilla enterprise mrg 2 1:3.10.0-327.rt56.190.el6rt
  • kernel-rt-firmware enterprise mrg 2 1:3.10.0-327.rt56.190.el6rt
  • kernel-rt-debuginfo-common-x86_64 enterprise mrg 2 1:3.10.0-327.rt56.190.el6rt
  • kernel-rt RHEL 7 EXTRAS_RT 3.10.0-327.22.2.rt56.230.el7_2
  • kernel-rt-kvm RHEL 7 EXTRAS_RT 3.10.0-327.22.2.rt56.230.el7_2
  • kernel-rt-trace RHEL 7 EXTRAS_RT 3.10.0-327.22.2.rt56.230.el7_2

red hat advisories RHSA-2016:1341RHSA-2016:1301RHSA-2016:1277RHSA-2016:1814RHSA-2016:1640RHSA-2016:1657

  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.86.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1
  • kernel-trace SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1
  • kernel-bigsmp SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.86.1
  • kernel-source SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1
  • kernel-default SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 3.0.101-0.47.86.1

suse advisories SUSE-SU-2017:0333-1SUSE-SU-2016:2245-1SUSE-SU-2016:2105-1SUSE-SU-2016:2002-1SUSE-SU-2016:1994-1SUSE-SU-2016:2009-1

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-2016-4565 updated cvss 7.8

kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko

  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-327.22.2.el7, kernel 3.10.0-327.22.2.el7, python-perf 3.10.0-327.22.2.el7, kernel-tools 3.10.0-327.22.2.el7, kernel-tools-libs 3.10.0-327.22.2.el7, kernel-abi-whitelists 3.10.0-327.22.2.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.22.2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-327.22.2.el7, kernel 3.10.0-327.22.2.el7, python-perf 3.10.0-327.22.2.el7, kernel-tools 3.10.0-327.22.2.el7, kernel-tools-libs 3.10.0-327.22.2.el7, kernel-abi-whitelists 3.10.0-327.22.2.el7, +1 more
    fixed: vendor fix RHSA-2016:1277
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) perf 3.10.0-229.40.1.el7, kernel 3.10.0-229.40.1.el7, kernel-tools 3.10.0-229.40.1.el7, kernel-tools-libs 3.10.0-229.40.1.el7, kernel-abi-whitelists 3.10.0-229.40.1.el7, kernel-debuginfo-common-x86_64 3.10.0-229.40.1.el7
    fixed: vendor fix RHSA-2016:1657
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.22.2.el7
    fixed: vendor fix RHSA-2016:1277
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) python-perf 3.10.0-229.40.1.el7, kernel-debuginfo-common-x86_64 3.10.0-229.40.1.el7
    fixed: vendor fix RHSA-2016:1657
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-642.3.1.el6, kernel 2.6.32-642.3.1.el6, kernel-firmware 2.6.32-642.3.1.el6, kernel-abi-whitelists 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-kvm 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-trace 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-debug-kvm 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-trace-kvm 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-debuginfo-common-x86_64 3.10.0-327.22.2.rt56.230.el7_2
    fixed: vendor fix RHSA-2016:1301
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-642.3.1.el6, kernel 2.6.32-642.3.1.el6, kernel-firmware 2.6.32-642.3.1.el6, kernel-abi-whitelists 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.6) perf 2.6.32-504.51.1.el6, kernel 2.6.32-504.51.1.el6, kernel-firmware 2.6.32-504.51.1.el6, kernel-abi-whitelists 2.6.32-504.51.1.el6, kernel-debuginfo-common-i686 2.6.32-504.51.1.el6, kernel-debuginfo-common-x86_64 2.6.32-504.51.1.el6
    fixed: vendor fix RHSA-2016:1640
show 27 more
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.7) perf 2.6.32-573.32.1.el6, kernel 2.6.32-573.32.1.el6, kernel-firmware 2.6.32-573.32.1.el6, kernel-abi-whitelists 2.6.32-573.32.1.el6, kernel-debuginfo-common-i686 2.6.32-573.32.1.el6, kernel-debuginfo-common-x86_64 2.6.32-573.32.1.el6
    fixed: vendor fix RHSA-2016:1489
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) python-perf 2.6.32-504.51.1.el6, kernel-debuginfo-common-x86_64 2.6.32-504.51.1.el6
    fixed: vendor fix RHSA-2016:1640
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) python-perf 2.6.32-573.32.1.el6, kernel-debuginfo-common-x86_64 2.6.32-573.32.1.el6
    fixed: vendor fix RHSA-2016:1489
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-trace 3.10.0-327.22.2.rt56.230.el7_2, kernel-rt-debuginfo-common-x86_64 3.10.0-327.22.2.rt56.230.el7_2
    fixed: vendor fix RHSA-2016:1301
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-642.3.1.el6, kernel 2.6.32-642.3.1.el6, kernel-kdump 2.6.32-642.3.1.el6, kernel-firmware 2.6.32-642.3.1.el6, kernel-bootwrapper 2.6.32-642.3.1.el6, kernel-abi-whitelists 2.6.32-642.3.1.el6, +4 more
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-327.22.2.el7, kernel 3.10.0-327.22.2.el7, python-perf 3.10.0-327.22.2.el7, kernel-kdump 3.10.0-327.22.2.el7, kernel-tools 3.10.0-327.22.2.el7, kernel-tools-libs 3.10.0-327.22.2.el7, +6 more
    fixed: vendor fix RHSA-2016:1277
  • Red Hat Enterprise Linux Server AUS (v. 6.2) perf 2.6.32-220.67.1.el6, kernel 2.6.32-220.67.1.el6, kernel-firmware 2.6.32-220.67.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.67.1.el6
    fixed: vendor fix RHSA-2016:1617
  • Red Hat Enterprise Linux Server AUS (v. 6.4) perf 2.6.32-358.72.1.el6, kernel 2.6.32-358.72.1.el6, kernel-firmware 2.6.32-358.72.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.72.1.el6
    fixed: vendor fix RHSA-2016:1581
  • Red Hat Enterprise Linux Server AUS (v. 6.5) perf 2.6.32-431.73.2.el6, kernel 2.6.32-431.73.2.el6, kernel-firmware 2.6.32-431.73.2.el6, kernel-abi-whitelists 2.6.32-431.73.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.73.2.el6
    fixed: vendor fix RHSA-2016:1814
  • Red Hat Enterprise Linux Server EUS (v. 6.6) perf 2.6.32-504.51.1.el6, kernel 2.6.32-504.51.1.el6, kernel-kdump 2.6.32-504.51.1.el6, kernel-firmware 2.6.32-504.51.1.el6, kernel-bootwrapper 2.6.32-504.51.1.el6, kernel-abi-whitelists 2.6.32-504.51.1.el6, +4 more
    fixed: vendor fix RHSA-2016:1640
  • Red Hat Enterprise Linux Server EUS (v. 6.7) perf 2.6.32-573.32.1.el6, kernel 2.6.32-573.32.1.el6, kernel-kdump 2.6.32-573.32.1.el6, kernel-firmware 2.6.32-573.32.1.el6, kernel-bootwrapper 2.6.32-573.32.1.el6, kernel-abi-whitelists 2.6.32-573.32.1.el6, +4 more
    fixed: vendor fix RHSA-2016:1489
  • Red Hat Enterprise Linux Server EUS (v. 7.1) perf 3.10.0-229.40.1.el7, kernel 3.10.0-229.40.1.el7, perf 3.10.0-229.40.1.ael7b, kernel 3.10.0-229.40.1.ael7b, kernel-kdump 3.10.0-229.40.1.el7, kernel-tools 3.10.0-229.40.1.el7, +11 more
    fixed: vendor fix RHSA-2016:1657
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-ppc64 2.6.32-642.3.1.el6, kernel-debuginfo-common-s390x 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-327.22.2.el7, kernel-debuginfo-common-x86_64 3.10.0-327.22.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-327.22.2.el7
    fixed: vendor fix RHSA-2016:1277
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) kernel 2.6.32-220.67.1.el6, python-perf 2.6.32-220.67.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.67.1.el6
    fixed: vendor fix RHSA-2016:1617
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.4) kernel 2.6.32-358.72.1.el6, python-perf 2.6.32-358.72.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.72.1.el6
    fixed: vendor fix RHSA-2016:1581
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.5) kernel 2.6.32-431.73.2.el6, python-perf 2.6.32-431.73.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.73.2.el6
    fixed: vendor fix RHSA-2016:1814
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.6) python-perf 2.6.32-504.51.1.el6, kernel-debuginfo-common-i686 2.6.32-504.51.1.el6, kernel-debuginfo-common-ppc64 2.6.32-504.51.1.el6, kernel-debuginfo-common-s390x 2.6.32-504.51.1.el6, kernel-debuginfo-common-x86_64 2.6.32-504.51.1.el6
    fixed: vendor fix RHSA-2016:1640
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.7) python-perf 2.6.32-573.32.1.el6, kernel-debuginfo-common-i686 2.6.32-573.32.1.el6, kernel-debuginfo-common-ppc64 2.6.32-573.32.1.el6, kernel-debuginfo-common-s390x 2.6.32-573.32.1.el6, kernel-debuginfo-common-x86_64 2.6.32-573.32.1.el6
    fixed: vendor fix RHSA-2016:1489
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.1) python-perf 3.10.0-229.40.1.el7, python-perf 3.10.0-229.40.1.ael7b, kernel-debuginfo-common-ppc64 3.10.0-229.40.1.el7, kernel-debuginfo-common-s390x 3.10.0-229.40.1.el7, kernel-debuginfo-common-x86_64 3.10.0-229.40.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-229.40.1.ael7b
    fixed: vendor fix RHSA-2016:1657
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-642.3.1.el6, kernel 2.6.32-642.3.1.el6, kernel-firmware 2.6.32-642.3.1.el6, kernel-abi-whitelists 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-327.22.2.el7, kernel 3.10.0-327.22.2.el7, python-perf 3.10.0-327.22.2.el7, kernel-tools 3.10.0-327.22.2.el7, kernel-tools-libs 3.10.0-327.22.2.el7, kernel-abi-whitelists 3.10.0-327.22.2.el7, +1 more
    fixed: vendor fix RHSA-2016:1277
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-642.3.1.el6, kernel-debuginfo-common-i686 2.6.32-642.3.1.el6, kernel-debuginfo-common-x86_64 2.6.32-642.3.1.el6
    fixed: vendor fix RHSA-2016:1406
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-327.22.2.el7
    fixed: vendor fix RHSA-2016:1277
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-327.rt56.190.el6rt, kernel-rt-trace 3.10.0-327.rt56.190.el6rt, kernel-rt-vanilla 3.10.0-327.rt56.190.el6rt, kernel-rt-firmware 3.10.0-327.rt56.190.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-327.rt56.190.el6rt
    fixed: vendor fix RHSA-2016:1341
  • 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

0.48% chance of exploitation in the next 30 days, higher than 41% 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
  • CWE-264 Permissions, Privileges, and Access Controls
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.