CVE-2016-9932

xen: x86 CMPXCHG8B emulation fails to ignore operand size override (XSA-200)

Published Jan 26, 2017 CVSS 3.0 · 3.3 Low EPSS < 1% KEV · Not listed
Description
CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-964-1 xen security update
Debian DSA Debian DSA DSA-3847-1 xen security update
EUVD EUVD EUVD-2016-10719 CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 3:07 AM
Reserved
Dec 12, 2016, 12:00 AM
Status
Modified
Published
Jan 26, 2017, 3:59 PM
Modified
Jun 17, 2026, 12:56 AM
Severity
Moderate
Public date
Dec 13, 2016, 12:00 AM