CVE-2016-1570

The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.

CVSS v3 8.5 HIGH
CVSS v2.0 6.9 MEDIUM

8.5^/10

CVSS v3 : HIGH

V3 Legend

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

Exploitability : 1.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.9^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.debian.org/security/2016/dsa-3519
http://www.securitytracker.com/id/1034744
http://xenbits.xen.org/xsa/advisory-167.html	Vendor Advisory
http://www.debian.org/security/2016/dsa-3519
http://www.securitytracker.com/id/1034744
http://xenbits.xen.org/xsa/advisory-167.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:xen:xen:3.4.0:::::::*
	cpe:2.3:o:xen:xen:3.4.1:::::::*
	cpe:2.3:o:xen:xen:4.1.0:::::::*
	cpe:2.3:o:xen:xen:4.1.1:::::::*
	cpe:2.3:o:xen:xen:4.1.2:::::::*
	cpe:2.3:o:xen:xen:4.1.3:::::::*
	cpe:2.3:o:xen:xen:4.1.4:::::::*
	cpe:2.3:o:xen:xen:4.1.5:::::::*
	cpe:2.3:o:xen:xen:4.1.6:::::::*
	cpe:2.3:o:xen:xen:4.1.6.1:::::::*
	cpe:2.3:o:xen:xen:4.2.0:::::::*
	cpe:2.3:o:xen:xen:4.2.1:::::::*
	cpe:2.3:o:xen:xen:4.2.2:::::::*
	cpe:2.3:o:xen:xen:4.2.3:::::::*
	cpe:2.3:o:xen:xen:4.2.4:::::::*
	cpe:2.3:o:xen:xen:4.2.5:::::::*
	cpe:2.3:o:xen:xen:4.3.0:::::::*
	cpe:2.3:o:xen:xen:4.3.1:::::::*
	cpe:2.3:o:xen:xen:4.3.2:::::::*
	cpe:2.3:o:xen:xen:4.3.3:::::::*
	cpe:2.3:o:xen:xen:4.3.4:::::::*
	cpe:2.3:o:xen:xen:4.4.0:::::::*
	cpe:2.3:o:xen:xen:4.4.0:rc1::::::
	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:4.5.0:::::::*
	cpe:2.3:o:xen:xen:4.5.1:::::::*
	cpe:2.3:o:xen:xen:4.5.2:::::::*
	cpe:2.3:o:xen:xen:4.6.0:::::::*

History

21 Nov 2024, 02:46

Type	Values Removed	Values Added
References	~~() http://www.debian.org/security/2016/dsa-3519 -~~	() http://www.debian.org/security/2016/dsa-3519 -
References	~~() http://www.securitytracker.com/id/1034744 -~~	() http://www.securitytracker.com/id/1034744 -
References	~~() http://xenbits.xen.org/xsa/advisory-167.html - Vendor Advisory~~	() http://xenbits.xen.org/xsa/advisory-167.html - Vendor Advisory

Information

Published : 2016-01-22 15:59

Updated : 2025-04-12 10:46

NVD link : CVE-2016-1570

Mitre link : CVE-2016-1570

CVE.ORG link : CVE-2016-1570

JSON object : View

Products Affected

xen

CWE

CWE-20

Improper Input Validation

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"HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.8}]}, "published": "2016-01-22T15:59:05.913", "references": [{"url": "http://www.debian.org/security/2016/dsa-3519", "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1034744", "source": "cve@mitre.org"}, {"url": "http://xenbits.xen.org/xsa/advisory-167.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2016/dsa-3519", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1034744", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://xenbits.xen.org/xsa/advisory-167.html", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 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8.5 /10