DEBIAN-CVE-2021-20196
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-20196
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-20196.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-20196
- Upstream
- Downstream
- Published
- 2021-05-26T22:15:07Z
- Modified
- 2026-09-15T09:00:14Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
- References
Affected packages
Debian:12 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=bookworm
Debian:13 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=trixie
Debian:14 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source&distro=forky