CVE-2017-10920

xen: grant table operations mishandle reference counts (XSA-224)

Published Jul 5, 2017 CVSS 3.0 · 10.0 Critical EPSS 2.5% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1132-1 xen security update
Debian DSA Debian DSA DSA-3969-1 xen security update
EUVD EUVD EUVD-2017-2558 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 5:50 PM
Reserved
Jul 4, 2017, 12:00 AM
Status
Modified
Published
Jul 5, 2017, 1:29 AM
Modified
Jun 17, 2026, 1:00 AM
Severity
Important
Public date
Jun 20, 2017, 12:00 AM