CVE-2016-9385

The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.

CVSS v3 6.0 MEDIUM
CVSS v2.0 4.9 MEDIUM

6.0^/10

CVSS v3 : MEDIUM

Vector : AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Exploitability : 1.5 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://www.securityfocus.com/bid/94472	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037342	Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-193.html	Patch Vendor Advisory
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775	Patch Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:xen:xen:4.4.0:::::::*
	cpe:2.3:o:xen:xen:4.4.1:::::::*
	cpe:2.3:o:xen:xen:4.4.2:::::::*
	cpe:2.3:o:xen:xen:4.4.3:::::::*
	cpe:2.3:o:xen:xen:4.4.4:::::::*
	cpe:2.3:o:xen:xen:4.5.0:::::::*
	cpe:2.3:o:xen:xen:4.5.1:::::::*
	cpe:2.3:o:xen:xen:4.5.2:::::::*
	cpe:2.3:o:xen:xen:4.5.3:::::::*
	cpe:2.3:o:xen:xen:4.5.5:::::::*
	cpe:2.3:o:xen:xen:4.6.0:::::::*
	cpe:2.3:o:xen:xen:4.6.1:::::::*
	cpe:2.3:o:xen:xen:4.6.3:::::::*
	cpe:2.3:o:xen:xen:4.6.4:::::::*
	cpe:2.3:o:xen:xen:4.7.0:::::::*
	cpe:2.3:o:xen:xen:4.7.1:::::::*

Configuration 2 (hide)

OR	cpe:2.3:a:citrix:xenserver:6.0.2:::::::*
	cpe:2.3:a:citrix:xenserver:6.2.0:::::::*
	cpe:2.3:a:citrix:xenserver:6.5:::::::*
	cpe:2.3:a:citrix:xenserver:7.0:::::::*

History

No history.

Information

Published : 2017-01-23 21:59

Updated : 2023-12-10 12:01

NVD link : CVE-2016-9385

Mitre link : CVE-2016-9385

CVE.ORG link : CVE-2016-9385

JSON object : View

Products Affected

citrix

xenserver

xen

xen

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2016-9385", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 6.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.5}]}, "published": "2017-01-23T21:59:02.907", "references": [{"url": "http://www.securityfocus.com/bid/94472", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1037342", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-193.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.gentoo.org/glsa/201612-56", "source": "cve@mitre.org"}, {"url": "https://support.citrix.com/article/CTX218775", "tags": ["Patch", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks."}, {"lang": "es", "value": "La funcionalidad de emulaci\u00f3n de escritura de base de segmento x86 en Xen 4.4.x hasta la versi\u00f3n 4.7.x permite a administradores locales del SO invitado x86 PV provocar una denegaci\u00f3n de servicio (ca\u00edda del host) aprovechando la falta de verificaci\u00f3n de direcciones can\u00f3nicas."}], "lastModified": "2017-07-01T01:30:13.063", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1044792C-D544-457C-9391-4F3B5BAB978D"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FBD9AD01-50B7-4951-8A73-A6CF4801A487"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "89AA8FD5-E997-4F0D-AFB6-FFBE0073BA5D"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75615D84-9CA1-456C-816D-768E37B074A4"}, {"criteria": "cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7AB87384-A1F8-4136-A242-441C655D9364"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90CCECD0-C0F9-45A8-8699-64428637EBCA"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0ED340C-6746-471E-9F2D-19D62D224B7A"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "99BD7C4F-DE4C-4508-B20D-46A94B616C5B"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3374F1FB-70F9-4EBC-837B-0D42282E3E5F"}, {"criteria": "cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "37DA3D28-EAE7-4EC9-977C-444A46CBD9C7"}, {"criteria": "cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4B6F7CE9-C409-4D88-9A99-B21420633F45"}, {"criteria": "cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B814C381-4991-495A-B530-7543F977B346"}, {"criteria": "cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "14442705-D243-4250-A486-E70989946D73"}, {"criteria": "cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBB7BAFE-9CB4-40D2-908C-55307728116F"}, {"criteria": "cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1DD0255-9127-4C7F-9C02-42198820363E"}, {"criteria": "cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8FDFDDA0-51D2-4995-9B4D-48047C940FC5"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5FCF191B-971A-4945-AB14-08091689BE2F"}, {"criteria": "cpe:2.3:a:citrix:xenserver:6.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCEA97B9-A443-4F87-81B4-B3F0E94AC18E"}, {"criteria": "cpe:2.3:a:citrix:xenserver:6.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "56434D13-7A7B-495C-A135-2688C706A065"}, {"criteria": "cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "405F950F-0772-41A3-8B72-B67151CC1376"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}