CVE-2018-1068

Published: 16 March 2018

A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

From the Ubuntu security team

It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 6.7

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-13.14)
Patches:
Upstream: https://github.com/torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by b71812168571fa55e44cdd0254471331b9c4c4c6
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1003.3)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1003.3)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1003.3)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-8.9~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1003.3)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1006.7)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.16~rc5)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable