Riskcovery

CVE-2025-47712

Nbd: nbdkit: integer overflow triggers an assertion resulting in denial of service

State
Published
Severity
6.5 Medium
Published
Jun 9, 2025
Updated
Jun 30, 2026
Reserved
May 7, 2025

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

  • CWE-190 Integer Overflow or Wraparound

Affected Products

ProductVersions
nbdkit
  • 1.21.16 to before 1.38.6Affected
  • 1.40.0 to before 1.40.6Affected
  • 1.42.0 to before 1.42.3Affected
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat
        Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat
          Red Hat Enterprise Linux 8 Advanced VirtualizationRed Hat
            Red Hat Enterprise Linux 9Red Hat

              References

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