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CVE-2016-6259

CVE information

Published

7 years ago

Last Modified

7 years ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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Description

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check..

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
6.2/10
Exploit Score
2.5/10
Access Vector
Local
Access Complexity
Low
Privileges Required
None
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:xen:xen:4.6.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:6.5.0:sp1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:6.2.0:sp1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:citrix:xenserver:6.1:*:*:*:*:*:*:*
  Yes
- -

References