CVE-2017-10920

CRITICAL

Xen < 4.8.1 - Memory Corruption and Privilege Escalation via Grant-Table Mapping

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5
Core References
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201708-03
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2017/dsa-3969
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038734
Patch, Vendor Advisory x_refsource_confirm
https://xenbits.xen.org/xsa/advisory-224.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201710-17

Scores

CVSS v3 10.0
EPSS 0.0113
EPSS Percentile 78.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (1)
xen/xen < 4.8.1
Published Jul 05, 2017
Tracked Since Feb 18, 2026