CVE-2012-0045

2012-01-1300:00:00

ubuntu.com

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

0.002 Low

EPSS

Percentile

55.6%

JSON

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.

Bugs

Notes

Author	Note
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)

OSVersionArchitecturePackageVersionFilename
ubuntu10.04noarchlinux< 2.6.32-41.88UNKNOWN
ubuntu10.10noarchlinux< 2.6.35-32.68UNKNOWN
ubuntu11.04noarchlinux< 2.6.38-14.58UNKNOWN
ubuntu11.10noarchlinux< 3.0.0-18.31UNKNOWN
ubuntu10.04noarchlinux-ec2< 2.6.32-345.47UNKNOWN
ubuntu10.04noarchlinux-lts-backport-maverick< 2.6.35-32.68~lucid1UNKNOWN
ubuntu10.04noarchlinux-lts-backport-natty< 2.6.38-14.58~lucid1UNKNOWN
ubuntu10.04noarchlinux-lts-backport-oneiric< 3.0.0-18.31~lucid1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	10.04	noarch	linux	< 2.6.32-41.88	UNKNOWN
ubuntu	10.10	noarch	linux	< 2.6.35-32.68	UNKNOWN
ubuntu	11.04	noarch	linux	< 2.6.38-14.58	UNKNOWN
ubuntu	11.10	noarch	linux	< 3.0.0-18.31	UNKNOWN
ubuntu	10.04	noarch	linux-ec2	< 2.6.32-345.47	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-maverick	< 2.6.35-32.68~lucid1	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-natty	< 2.6.38-14.58~lucid1	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-oneiric	< 3.0.0-18.31~lucid1	UNKNOWN