Description
The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).
Published: 2016-05-25
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-573-1 qemu security update
Debian DLA Debian DLA DLA-1599-1 qemu security update
EUVD EUVD EUVD-2016-5026 The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).
Ubuntu USN Ubuntu USN USN-2974-1 QEMU vulnerabilities
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Canonical Ubuntu Linux
Debian Debian Linux
Qemu Qemu
Redhat Enterprise Linux Enterprise Linux Desktop Enterprise Linux Eus Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Tus Enterprise Linux Workstation Openstack Virtualization
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T00:17:30.133Z

Reserved: 2016-04-14T00:00:00.000Z

Link: CVE-2016-4020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-05-25T15:59:04.927

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-4020

cve-icon Redhat

Severity : Low

Publid Date: 2016-04-07T00:00:00Z

Links: CVE-2016-4020 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses