CVE-2017-10920

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

CVSS v3 10.0 CRITICAL
CVSS v2.0 10.0 HIGH

10.0^/10

CVSS v3 : CRITICAL

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

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

10.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://www.debian.org/security/2017/dsa-3969
http://www.securitytracker.com/id/1038734
https://security.gentoo.org/glsa/201708-03
https://security.gentoo.org/glsa/201710-17
https://xenbits.xen.org/xsa/advisory-224.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-07-05 01:29

Updated : 2024-02-04 19:29

NVD link : CVE-2017-10920

Mitre link : CVE-2017-10920

CVE.ORG link : CVE-2017-10920

JSON object : View

Products Affected

xen

xen

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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