DEBIAN-CVE-2016-4020

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Source
https://security-tracker.debian.org/tracker/CVE-2016-4020
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2016-4020.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2016-4020
Upstream
Downstream
Published
2016-05-25T15:59:04Z
Modified
2026-09-01T16:04:10Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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).

References

Affected packages

Debian:12 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.6+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2016-4020.json"

Debian:13 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.6+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2016-4020.json"

Debian:14 / qemu

Package

Name
qemu
Purl
pkg:deb/debian/qemu?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.6+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2016-4020.json"