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Fencer Vulns
medium 5.5

CVE-2016-9191 json

The cgroup offline implementation in the Linux kernel through 4.8.11 mishandles certain drain operations, which allows local users to cause…

published 2016-11-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10003

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 36%
public exploits
0
none known

Summary

The cgroup offline implementation in the Linux kernel through 4.8.11 mishandles certain drain operations, which allows local users to cause a denial of service (system hang) by leveraging access to a container environment for executing a crafted application, as demonstrated by trinity.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.9.6-1

debian advisories DEBIAN-CVE-2016-9191

  • linux Ubuntu 14.04 LTS 3.13.0-132.181
  • linux Ubuntu 16.04 LTS 4.4.0-63.84
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1003.12
  • linux-hwe Ubuntu 16.04 LTS 4.10.0-32.36~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1044.51
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-63.84~14.04.2
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1047.51

ubuntu advisories UBUNTU-CVE-2016-9191

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 12 SP2 4.4.74-7.10.1
  • kernel-syms-rt SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-rt_debug SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-source-rt SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.40.1
  • kernel-xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1
  • kernel-syms SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1
  • kernel-source SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1

suse advisories SUSE-SU-2017:1990-1SUSE-SU-2017:1360-1SUSE-SU-2017:1183-1

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-2016-9191 updated cvss 5.5

kernel: Local DoS via cgroup offline code

  • 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 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    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 3.0 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
  • CWE-20 Improper Input Validation
  • CWE-399 Resource Management Errors
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.