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THREATINT
PUBLISHED

CVE-2025-47712

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



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.

Reserved 2025-05-07 | Published 2025-06-09 | Updated 2025-06-09 | Assigner redhat


MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Problem types

Integer Overflow or Wraparound

Product status

Default status
affected

Default status
unknown

Default status
unknown

Default status
unknown

Default status
unknown

Default status
affected

Timeline

2025-05-12:Reported to Red Hat.
2025-04-23:Made public.

References

access.redhat.com/security/cve/CVE-2025-47712 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2365724 (RHBZ#2365724) issue-tracking

cve.org (CVE-2025-47712)

nvd.nist.gov (CVE-2025-47712)

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