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CVE-2014-3690

CVE information

Published

9 years ago

Last Modified

1 year ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU..

CVSSv2.0 Score

Severity
Medium
Base Score
4.9/10
Exploit Score
3.9/10
Access Vector
Local
Access Complexity
Low
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
5.5/10
Exploit Score
1.8/10
Access Vector
Local
Access Complexity
Low
Privileges Required
Low
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
- 3.17.2
cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*
  Yes
- -
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*
  Yes
- -
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:-:*:*:*:
  Yes
- -
cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:*:*
  Yes
- -
cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:
  Yes
- -
cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp2:*:*:lts
  Yes
- -
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  Yes
- -

References