Description
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. 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 | Affected: up to latest v7.1.0-rc4 | — |
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 | No fix yet | — |
| Debian 13 | qemu | No fix yet | — |
| Debian 12 | qemu | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qemu +1 | No fix yet | — |
| Ubuntu 26.04 LTS | qemu +1 | No fix yet | — |
| Ubuntu 25.10 | qemu | No fix yet | — |
| Ubuntu 24.04 LTS | qemu | No fix yet | — |
| Ubuntu 22.04 LTS | qemu | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 18.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 16.04 LTS | qemu | No fix yet | — |
| Ubuntu Pro 14.04 LTS | qemu | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 6.2.0-18 | — |
| Azure Linux 2 (CBL-Mariner) | qemu | 6.2.0-12 | — |
Advisories 1
- NCSC-2024-0339 Kwetsbaarheden verholpen in Microsoft Mariner NCSC-NL (Netherlands) · Aug 13, 2024