Description
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | QEMU | QEMU 6.1.50 | — |
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 | 1:7.1+dfsg-1 | — |
| Debian 13 | qemu | 1:7.1+dfsg-1 | — |
| Debian 12 | qemu | 1:7.1+dfsg-1 | — |
| Debian 10 | qemu | 1:3.1+dfsg-8+deb10u10 | DLA-3362-1 |
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 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | qemu | 1:2.11+dfsg-1ubuntu7.42+esm5 | — |
| Ubuntu Pro 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.51+esm4 | — |
| Ubuntu Pro 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.47+esm6 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | qemu | 6.2.0-150400.37.14.2 | SUSE-SU-2023:0879-1 |
| SLES 15 SP3 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-66.1 | SUSE-SU-2023:0761-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-66.1 | SUSE-SU-2023:0761-1 |
| SLE Real Time 15 SP3 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SLE Micro 5.4 | qemu | 6.2.0-150400.37.14.2 | SUSE-SU-2023:0879-2 |
| SLE Micro 5.3 | qemu | 6.2.0-150400.37.14.2 | SUSE-SU-2023:0879-1 |
| SLE Micro 5.2 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SLE Micro 5.1 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SLE HPC 15 SP3 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SUSE Manager Server 4.2 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SUSE Manager Proxy 4.2 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
| SUSE Enterprise Storage 7.1 | qemu | 5.2.0-150300.121.2 | SUSE-SU-2023:0840-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | qemu | 6.2.0-150400.37.14.2 | SUSE-SU-2023:0879-1 |
| openSUSE Leap 15.4 | qemu-testsuite +1 | 6.2.0-150400.37.14.1 | SUSE-SU-2023:0879-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | qemu | 6.2.0-150400.37.14.2 | SUSE-SU-2023:0879-1 |
Advisories 7
- WID-SEC-2022-2259 QEMU: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- USN-6567-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3362-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:0840-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0761-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0879-2 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0879-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026