CVE-2012-0045

Priority
Medium
Description
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.
Ubuntu-Description
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.
References
Bugs
Notes
 apw> introduced by: e66bb2ccdcf76d032bbb464b35c292bb3ee58f9b
 apw> current patches appear to be on github but not approved and merged:
 apw> https://github.com/baerwolf/linux-stephan/commit/a5fad9d83c19a4af9f41b48d78eb1688c8289c7e
 apw> now upstream (see below)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.13.0-24.46~precise1)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (4.2.0-18.22~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
linux-vegetahd:not-affected (1.0)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Ubuntu 16.10 (Yakkety Yak):not-affected (4.4.0-1012.12)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:needed
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.2.0-19.30)
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.11.0-12.19)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:not-affected (3.16.0-23.31)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-16.19)
Ubuntu 16.10 (Yakkety Yak):not-affected (4.4.0-21.37)
Patches:
Introduced by e66bb2ccdcf76d032bbb464b35c292bb3ee58f9bFixed by bdb42f5afebe208eae90406959383856ae2caf2b
Introduced by e66bb2ccdcf76d032bbb464b35c292bb3ee58f9bFixed by c2226fc9e87ba3da060e47333657cd6616652b84
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.2.0-1412.15)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (3.2.0-1601.4)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.4.0-1.9)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-4.27)
Ubuntu 16.10 (Yakkety Yak):not-affected (3.4.0-4.23)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):needs-triage
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (4.4.0-13.29~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.4.0-4.19)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:needed
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):needs-triage
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:needed
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.19.0-18.18~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:released (4.2.0-1014.21)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-1014.21)
Ubuntu 16.10 (Yakkety Yak):not-affected (4.4.0-1009.10)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.4.0-3.21)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-7.40)
Ubuntu 16.10 (Yakkety Yak):not-affected (3.4.0-5.34)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.16.0-25.33~14.04.2)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Package
linux-krillin:not-affected (1.0)
Package
Upstream:released (3.3~rc3)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (3.4.0-1.3)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-5.22)
Ubuntu 16.10 (Yakkety Yak):not-affected (3.4.0-3.15)
More Information

Updated: 2016-10-19 10:16:51 UTC (commit 11638)