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.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 8.6 | High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| Product | Vendor | Version |
|---|---|---|
| QEMU | n/a | < 0.7.4 |