vulnerability
Red Hat: CVE-2025-47711: nbdkit: nbdkit-server: off-by-one error when processing block status may lead to a Denial of Service
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:N/I:N/A:P) | Jun 9, 2025 | Jul 9, 2025 | Jul 10, 2025 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Jun 9, 2025
Added
Jul 9, 2025
Modified
Jul 10, 2025
Description
There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If a client makes a specific request for a very large data range, and a plugin responds with an even larger single block, the nbdkit server can encounter a critical internal error, leading to a denial-of-service.
Solution
no-fix-redhat-rpm-package
References
Rapid7 Labs
2026 Global Threat Landscape Report
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