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CVE-2016-9191

Published: 27 November 2016

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.

From the Ubuntu security team

CAI Qian discovered that the sysctl implementation in the Linux kernel did not properly perform reference counting in some situations. An unprivileged attacker could use this to cause a denial of service (system hang).

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Patches:
Introduced by f0c3b5093addc8bfe9fe3a5b01acb7ec7969eafa
Fixed by 93362fa47fe98b62e4a34ab408c4a418432e7939
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

References