DEBIAN-CVE-2021-3507

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Source
https://security-tracker.debian.org/tracker/CVE-2021-3507
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3507.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-3507
Upstream
Published
2021-05-06T16:15:07Z
Modified
2025-09-25T23:23:18.942977Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L CVSS Calculator
Summary
[none]
Details

A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrltransferhandler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.

References

Affected packages

Debian:11 / qemu

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:5.2+dfsg-11+deb11u3

Affected versions

1:5.*

1:5.2+dfsg-11
1:5.2+dfsg-11+deb11u1
1:5.2+dfsg-11+deb11u2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / qemu

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:7.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / qemu

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:7.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / qemu

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:7.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}