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Overview

Vulnerability Score 4.7 4.7
CVE Id CVE-2012-0045
Last Modified 03 Jul 2012 12:00:00
Published 03 Jul 2012 12:40:31
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact COMPLETE COMPLETE
Access Vector LOCAL
Access Complexity MEDIUM
Authentication NONE

CVE-2012-0045

Summary

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.

Vulnerable Systems

Operating System

  • Linux Kernel 3.0

  • Linux Kernel 3.0.1

  • Linux Kernel 3.0.10

  • Linux Kernel 3.0.11

  • Linux Kernel 3.0.12

  • Linux Kernel 3.0.13

  • Linux Kernel 3.0.14

  • Linux Kernel 3.0.15

  • Linux Kernel 3.0.16

  • Linux Kernel 3.0.17

  • Linux Kernel 3.0.18

  • Linux Kernel 3.0.19

  • Linux Kernel 3.0.2

  • Linux Kernel 3.0.20

  • Linux Kernel 3.0.21

  • Linux Kernel 3.0.22

  • Linux Kernel 3.0.23

  • Linux Kernel 3.0.24

  • Linux Kernel 3.0.25

  • Linux Kernel 3.0.26

  • Linux Kernel 3.0.27

  • Linux Kernel 3.0.28

  • Linux Kernel 3.0.29

  • Linux Kernel 3.0.3

  • Linux Kernel 3.0.30

  • Linux Kernel 3.0.31

  • Linux Kernel 3.0.32

  • Linux Kernel 3.0.33

  • Linux Kernel 3.0.34

  • Linux Kernel 3.0.4

  • Linux Kernel 3.0.5

  • Linux Kernel 3.0.6

  • Linux Kernel 3.0.7

  • Linux Kernel 3.0.8

  • Linux Kernel 3.0.9

  • Linux Kernel 3.1

  • Linux Kernel 3.1.1

  • Linux Kernel 3.1.10

  • Linux Kernel 3.1.2

  • Linux Kernel 3.1.3

  • Linux Kernel 3.1.4

  • Linux Kernel 3.1.5

  • Linux Kernel 3.1.6

  • Linux Kernel 3.1.7

  • Linux Kernel 3.1.8

  • Linux Kernel 3.1.9

  • Linux Kernel 3.2

  • Linux Kernel 3.2.1

  • Linux Kernel 3.2.10

  • Linux Kernel 3.2.11

  • Linux Kernel 3.2.12

  • Linux Kernel 3.2.13

  • Linux Kernel 3.2.2

  • Linux Kernel 3.2.3

  • Linux Kernel 3.2.4

  • Linux Kernel 3.2.5

  • Linux Kernel 3.2.6

  • Linux Kernel 3.2.7

  • Linux Kernel 3.2.8

  • Linux Kernel 3.2.9


References

CONFIRM - https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84

CONFIRM - https://bugzilla.redhat.com/show_bug.cgi?id=773370

MLIST - [oss-security] 20120111 Re: CVE request -- kernel: kvm: syscall instruction induced guest panic

CONFIRM - http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14

CONFIRM - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c2226fc9e87ba3da060e47333657cd6616652b84

Related Patches

Novell SUSE 2012:6227 kernel security update for SLE 11 SP1 i586

Novell SUSE 2012:6230 kernel security update for SLE 11 SP1 x86_64


Last Updated: 27 May 2016 10:54:50