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).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2016-05-25T15:00:00

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

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

Link: CVE-2016-4020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2023-02-13T04:50:09.340

Link: CVE-2016-4020

cve-icon Redhat

Severity : Low

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

Links: CVE-2016-4020 - Bugzilla