Description
A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | qemu | 1.5.0 – < 9.0.0 | 9.0.0 |
| 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 | 1:8.2.3+ds-1 | — |
| Debian 13 | qemu | 1:8.2.3+ds-1 | — |
| Debian 12 | qemu | 1:7.2+dfsg-7+deb12u6 | — |
| Debian 11 | qemu | 1:5.2+dfsg-11+deb11u4 | DLA-4144-1 |
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 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | qemu | 1:4.2-3ubuntu6.30+esm1 | — |
| 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 SP5 | qemu | 7.1.0-150500.49.15.1 | SUSE-SU-2024:1438-1 |
| SLES 15 SP4 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SLES 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLES 12 SP5 | qemu | 3.1.1.1-75.1 | SUSE-SU-2024:3229-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SLES for SAP 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLES for SAP 12 SP5 | qemu | 3.1.1.1-75.1 | SUSE-SU-2024:3229-1 |
| SLE Micro 6.0 | qemu | 8.2.5-1.1 | SUSE-SU-2025:20011-1 |
| SLE Micro 5.5 | qemu | 7.1.0-150500.49.15.1 | SUSE-SU-2024:1438-2, SUSE-SU-2024:1438-1 |
| SLE Micro 5.4 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SLE Micro 5.3 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SLE Micro 5.2 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLE Micro 5.1 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SLE HPC 15 SP4 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SLE HPC 15 SP3 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
| SUSE Manager Server 4.3 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SUSE Manager Proxy 4.3 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| SUSE Enterprise Storage 7.1 | qemu | 5.2.0-150300.135.1 | SUSE-SU-2025:0692-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | qemu | 8.2.2-2.1 | openSUSE-SU-2024:13876-1 |
| openSUSE Leap 15.5 | qemu | 7.1.0-150500.49.15.1 | SUSE-SU-2024:1438-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
| openSUSE Leap Micro 5.3 | qemu | 6.2.0-150400.37.29.1 | SUSE-SU-2024:1394-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qemu +26 | 10:3.1.0-8.amzn2.0.17 | ALAS2-2024-2624 |
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 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | qemu-img +9 | 30:7.2.0-13.el9 | ELSA-2024-12574 |
| Oracle Linux 8 | hivex +4 | 1.3.18-21.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libguestfs-appliance | 1:1.44.0-5.0.1.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libguestfs-winsupport | 8.2-1.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libiscsi +2 | 1.18.0-8.module+el8.10.0+90353+09180a4e | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libnbd +3 | 1.2.2-1.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libnbd-bash-completion | 1.6.0-5.module+el8.10.0+90353+09180a4e | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libtpms +1 | 0.9.1-0.20211126git1ff6fe1f43.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libvirt +29 | 5.7.0-44.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libvirt-client-qemu | 9.0.0-5.module+el8.10.0+90353+09180a4e | ELSA-2024-12536 |
| Oracle Linux 8 | libvirt-dbus | 1.3.0-2.module+el8.10.0+90353+09180a4e | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | libvirt-wireshark | 7.10.0-4.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | nbdkit +13 | 1.16.2-4.0.1.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | nbdkit-nbd-plugin +4 | 1.24.0-4.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | netcf +2 | 0.2.8-12.module+el8.10.0+90353+09180a4e | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | perl-Sys-Virt | 4.5.0-5.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | qemu-img +9 | 15:4.2.1-35.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | qemu-virtiofsd | 15:6.1.1-9.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | seabios +2 | 1.15.0-2.module+el8.10.0+90374+95a91213 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | sgabios +1 | 1:0.20170427git-3.module+el8.10.0+90353+09180a4e | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | supermin +1 | 5.1.19-10.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | swtpm +4 | 0.7.0-3.20211109gitb79fd91.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | virt-dib +23 | 1:1.40.2-28.0.4.module+el8.10.0+90415+56803fd5 | ELSA-2024-12791, ELSA-2024-12605, ELSA-2024-12536 |
| Oracle Linux 8 | virt-v2v-man-pages-ja +2 | 1:1.42.0-19.0.1.module+el8.10.0+90374+95a91213 | ELSA-2024-12605, ELSA-2024-12536 |
Advisories 18
- WID-SEC-2024-0819 QEMU: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 29, 2026
- ICSA-26-134-16 Siemens Ruggedcom Rox CISA ICS & IT advisories · May 14, 2026
- NCSC-2026-0147 Kwetsbaarheden verholpen in Siemens-producten NCSC-NL (Netherlands) · May 13, 2026
- SSA-577017 SSA-577017: Multiple Vulnerabilities in Ruggedcom Rox Before 2.17.1 Siemens ProductCERT · May 12, 2026
- USN-7744-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2025:20011-1 Security update for qemu SUSE / openSUSE Security Updates · Mar 23, 2026
- DLA-4144-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:13876-1 qemu-8.2.2-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1438-2 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3229-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1394-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1438-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0692-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-12791 Low: virt:kvm_utils1 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 23, 2024
- ELSA-2024-12605 Important: virt:kvm_utils2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 2, 2024
- ALAS2-2024-2624 Important: qemu security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 20, 2024
- ELSA-2024-12574 Moderate: qemu-kvm security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 7, 2024
- ELSA-2024-12536 Moderate: virt:kvm_utils3 bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 15, 2024