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CVE-2016-9083

Published: 27 November 2016

drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."

From the Ubuntu Security Team

Vlad Tsyrklevich discovered an integer overflow vulnerability in the VFIO PCI driver for the Linux kernel. A local attacker with access to a vfio PCI device file could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

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

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux-armadaxp
Launchpad, Ubuntu, Debian
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
artful Does not exist

precise Not vulnerable

trusty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial
Released (4.4.0-1018.27)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial Not vulnerable
(4.11.0-1009.9)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Ignored
(was needed ESM criteria)
zesty Does not exist

upstream
Released (4.9~rc4)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

zesty Does not exist

upstream
Released (4.9~rc4)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Not vulnerable
(4.10.0-1004.4)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1014.14)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

zesty Not vulnerable

upstream
Released (4.9~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist

xenial
Released (4.10.0-27.30~16.04.2)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist

xenial
Released (4.10.0-27.30~16.04.2)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1004.9)
zesty Does not exist

upstream
Released (4.9~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Ignored
(end of life, was needed)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty
Released (4.4.0-79.100~14.04.1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

zesty Does not exist

upstream
Released (4.9~rc4)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Not vulnerable
(4.13.0-1008.9)
zesty Does not exist

upstream
Released (4.9~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-1004.6)
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1057.64)
yakkety Ignored
(end of life)
zesty Not vulnerable
(4.10.0-1001.3)
upstream
Released (4.9~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1059.63)
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1059.63)
yakkety
Released (4.4.0-1059.63)
zesty
Released (4.4.0-1059.63)
upstream
Released (4.9~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

precise Not vulnerable

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.9~rc4)
linux
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
artful Not vulnerable
(4.10.0-19.21)
precise Not vulnerable

trusty
Released (3.13.0-132.181)
xenial
Released (4.4.0-79.100)
yakkety Ignored
(end of life)
zesty Not vulnerable
(4.9.0-11.12)
Patches:
Introduced by

89e1f7d4c66d85f42c3d52ea3866eb10cadf6153

Fixed by 05692d7005a364add85c6e25a6c4447ce08f913a

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H