The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.0 | 5.8 | Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L |
| Product | Vendor | Version |
|---|---|---|
| qemu | QEMU | <= 5.15.* |