Description
A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu | 5.1.0 – < 9.1.0 | 9.1.0 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | 1:9.0.2+ds-3 | — |
| Debian 13 | qemu | 1:9.0.2+ds-3 | — |
| Debian 12 | qemu | 1:7.2+dfsg-7+deb12u8 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qemu | 1:8.2.2+ds-0ubuntu1.10 | USN-7744-1 |
| Ubuntu 22.04 LTS | qemu | 1:6.2+dfsg-2ubuntu6.27 | USN-7744-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | qemu | 7.1.0-150500.49.36.2 | SUSE-SU-2026:0039-1 |
| SLES 15 SP5 | qemu | 7.1.0-150500.49.36.2 | SUSE-SU-2026:0039-1 |
| SLES 15 SP4 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | qemu | 7.1.0-150500.49.36.2 | SUSE-SU-2026:0039-1 |
| SLES for SAP 15 SP4 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
| SLE Micro 5.5 | qemu | 7.1.0-150500.49.36.2 | SUSE-SU-2026:0039-1 |
| SLE Micro 5.4 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
| SLE Micro 5.3 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
| SLE Micro 5.2 | qemu | 5.2.0-150300.138.1 | SUSE-SU-2026:0070-1 |
| SLE HPC 15 SP5 | qemu | 7.1.0-150500.49.36.2 | SUSE-SU-2026:0039-1 |
| SLE HPC 15 SP4 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
| SUSE Manager Server LTS 4.3 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
| SUSE Manager Proxy LTS 4.3 | qemu | 6.2.0-150400.37.46.1 | SUSE-SU-2026:0043-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 8.2.0-16 | — |
| Azure Linux 2 (CBL-Mariner) | qemu | 6.2.0-24 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | qemu +13 | 11.0.1-r0 | — |
Advisories 5
- USN-7744-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2026:0039-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0043-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2026:0070-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1531 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jan 8, 2026
References
- https://access.redhat.com/security/cve/CVE-2024-6505 vdb-entry
- RHBZ#2295760 issue-tracking