A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.
History

Thu, 21 Aug 2025 01:30:00 +0000

Type Values Removed Values Added
First Time appeared Nbdkit Project
Nbdkit Project nbdkit
Redhat enterprise Linux Advanced Virtualization
CPEs cpe:2.3:a:nbdkit_project:nbdkit:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_advanced_virtualization:8.0:*:*:*:*:*:*:*
Vendors & Products Nbdkit Project
Nbdkit Project nbdkit
Redhat enterprise Linux Advanced Virtualization

Tue, 29 Jul 2025 18:30:00 +0000


Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00043}

epss

{'score': 0.00049}


Mon, 09 Jun 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 09 Jun 2025 06:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.
Title nbd: nbdkit: Integer overflow triggers an assertion resulting in Denial of Service Nbd: nbdkit: integer overflow triggers an assertion resulting in denial of service
First Time appeared Redhat
Redhat advanced Virtualization
Redhat enterprise Linux
CPEs cpe:/a:redhat:advanced_virtualization:8::el8
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat advanced Virtualization
Redhat enterprise Linux
References

Tue, 13 May 2025 04:45:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title nbd: nbdkit: Integer overflow triggers an assertion resulting in Denial of Service
Weaknesses CWE-190
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Moderate


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2025-06-09T05:58:41.198Z

Updated: 2025-08-21T01:23:44.078Z

Reserved: 2025-05-07T21:08:45.449Z

Link: CVE-2025-47712

cve-icon Vulnrichment

Updated: 2025-06-09T18:23:53.127Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-09T06:15:25.537

Modified: 2025-08-21T01:19:08.157

Link: CVE-2025-47712

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-04-23T00:00:00Z

Links: CVE-2025-47712 - Bugzilla