CVE-2016-9382

xen: x86 task switch to VM86 mode mis-handled (XSA-192)

Published Jan 23, 2017 CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Description
Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-720-1 xen security update
Debian DSA Debian DSA DSA-3729-1 xen security update
EUVD EUVD EUVD-2016-10192 Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 2:50 AM
Reserved
Nov 17, 2016, 12:00 AM
Status
Modified
Published
Jan 23, 2017, 9:59 PM
Modified
Jun 17, 2026, 12:55 AM
Severity
Moderate
Public date
Nov 22, 2016, 12:00 AM