Description
An issue was discovered in TCG Accelerator in QEMU 4.2.0, allows local attackers to execute arbitrary code, escalate privileges, and cause a denial of service (DoS). Note: This is disputed as a bug and not a valid security issue by multiple third parties.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:5.0-1 | — |
| Debian 13 | qemu | 1:5.0-1 | — |
| Debian 12 | qemu | 1:5.0-1 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u11 | DLA-3604-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.16 | USN-6567-1 |
| Ubuntu 20.04 LTS | qemu | 1:4.2-3ubuntu6.28 | USN-6567-1 |
Advisories 3
- USN-6567-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3604-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2023-2197 QEMU: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 16, 2024