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CVE-2012-0045

Published: 13 January 2012

The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application, as demonstrated by an NASM file.

From the Ubuntu Security Team

Stephan Bärwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service.

Notes

AuthorNote
apw
introduced by: e66bb2ccdcf76d032bbb464b35c292bb3ee58f9b
current patches appear to be on github but not approved and merged:
https://github.com/baerwolf/linux-stephan/commit/a5fad9d83c19a4af9f41b48d78eb1688c8289c7e
now upstream (see below)

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
oneiric
Released (3.0.0-18.31)
precise Not vulnerable
(3.2.0-19.30)
quantal Not vulnerable
(3.4.0-1.1)
saucy Not vulnerable
(3.9.0-0.2)
trusty Not vulnerable
(3.11.0-12.19)
utopic Not vulnerable
(3.13.0-24.46)
vivid Not vulnerable
(3.16.0-23.31)
wily Not vulnerable
(3.19.0-15.15)
xenial Not vulnerable
(4.2.0-16.19)
yakkety Not vulnerable
(4.4.0-21.37)
zesty Not vulnerable
(4.8.0-22.24)
hardy Not vulnerable

lucid
Released (2.6.32-41.88)
maverick
Released (2.6.35-32.68)
natty
Released (2.6.38-14.58)
upstream
Released (3.3~rc3)
Patches:
Introduced by

e66bb2ccdcf76d032bbb464b35c292bb3ee58f9b

Fixed by bdb42f5afebe208eae90406959383856ae2caf2b
Introduced by

e66bb2ccdcf76d032bbb464b35c292bb3ee58f9b

Fixed by c2226fc9e87ba3da060e47333657cd6616652b84
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-345.47)
maverick Ignored
(end of life)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (3.3~rc3)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

maverick Does not exist

lucid
Released (2.6.35-32.68~lucid1)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-armadaxp
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

natty Does not exist

oneiric Does not exist

precise Not vulnerable
(3.2.0-1601.4)
quantal Not vulnerable

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (3.3~rc3)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

zesty Does not exist

linux-flo
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist
(trusty was not-affected [3.4.0-1.3])
upstream
Released (3.3~rc3)
utopic Not vulnerable
(3.4.0-3.10)
vivid Not vulnerable
(3.4.0-3.15)
wily Not vulnerable
(3.4.0-4.18)
xenial Not vulnerable
(3.4.0-5.22)
yakkety Not vulnerable
(3.4.0-3.15)
zesty Does not exist

linux-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-gke
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-1.9])
upstream
Released (3.3~rc3)
utopic Not vulnerable
(3.4.0-3.14)
vivid Not vulnerable
(3.4.0-4.23)
wily Not vulnerable
(3.4.0-4.24)
xenial Not vulnerable
(3.4.0-4.27)
yakkety Not vulnerable
(3.4.0-4.27)
zesty Not vulnerable
(3.4.0-4.27)
linux-grouper
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (3.3~rc3)
utopic Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.38-14.58~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (3.0.0-18.31~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Not vulnerable
(3.13.0-24.46~precise1)
saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [4.2.0-18.22~14.04.1])
upstream
Released (3.3~rc3)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (3.3~rc3)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-mako
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-3.21])
upstream
Released (3.3~rc3)
utopic Not vulnerable
(3.4.0-5.28)
vivid Not vulnerable
(3.4.0-5.34)
wily Not vulnerable
(3.4.0-6.37)
xenial Not vulnerable
(3.4.0-7.40)
yakkety Not vulnerable
(3.4.0-5.34)
zesty Does not exist

linux-manta
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-4.19])
upstream
Released (3.3~rc3)
utopic Not vulnerable
(3.4.0-6.25)
vivid Not vulnerable
(3.4.0-6.29)
wily Not vulnerable
(3.4.0-7.32)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-mvl-dove
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Not vulnerable

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
vivid Does not exist

wily Not vulnerable
(4.2.0-1008.12)
xenial Not vulnerable
(4.2.0-1013.19)
yakkety Not vulnerable
(4.4.0-1009.10)
zesty Not vulnerable
(4.8.0-1013.15)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.3~rc3)
wily Does not exist

xenial Not vulnerable
(4.4.0-1012.12)
yakkety Not vulnerable
(4.4.0-1012.12)
zesty Not vulnerable
(4.4.0-1029.32)
linux-ti-omap4
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick Not vulnerable

natty Not vulnerable

oneiric Not vulnerable

precise Not vulnerable
(3.2.0-1412.15)
quantal Not vulnerable

saucy Not vulnerable
(3.5.0-223.34)
trusty Does not exist

upstream
Released (3.3~rc3)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist