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.
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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T02:50:36.977Z

Reserved: 2016-11-17T00:00:00

Link: CVE-2016-9382

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-01-23T21:59:02.830

Modified: 2025-04-20T01:37:25.860

Link: CVE-2016-9382

cve-icon Redhat

Severity : Moderate

Publid Date: 2016-11-22T00:00:00Z

Links: CVE-2016-9382 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses