CVE-2016-6259

CVSS V2 Medium 4.9 CVSS V3 Medium 6.2
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.
Overview
  • CVE ID
  • CVE-2016-6259
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2016-08-02T16:59:09
  • Last Modified Date
  • 2016-08-04T03:15:18
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.2.0:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:6.5.0:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.2
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.5
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://xenbits.xen.org/xsa/xsa183-4.6.patch Mitigation Patch
http://xenbits.xen.org/xsa/xsa183-unstable.patch Mitigation Patch
http://support.citrix.com/article/CTX214954 Vendor Advisory
http://xenbits.xen.org/xsa/advisory-183.html Mailing List Patch
http://www.securityfocus.com/bid/92130 Third Party Advisory
http://www.securitytracker.com/id/1036447 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-6259
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6259
History
Created Old Value New Value Data Type Notes
2022-05-10 10:14:34 Added to TrackCVE
2022-12-02 10:40:47 2016-08-02T16:59Z 2016-08-02T16:59:09 CVE Published Date updated
2022-12-02 10:40:47 2016-08-04T03:15:18 CVE Modified Date updated
2022-12-02 10:40:47 Analyzed Vulnerability Status updated