VDB
DEBIAN-CVE-2021-20255
DEBIAN-CVE-2021-20255
PUBLISHED
CVSS 5.5 MEDIUM
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | qemu | 0, 0, 0 |
| Debian:11 | qemu | *, 7.1+dfsg, 7.1+dfsg |
| Debian:12 | qemu | 10.0.0+ds, 10.0.0+ds, 10.0.0+ds |
| Debian:14 | qemu | 0, 0, 0 |
Timeline
- Mar 9, 2021 CVE Published
- Apr 28, 2026 CVE Updated