Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 1.21.16 before 1.38.6; affected 1.40.0 before 1.40.6; affected 1.42.0 before 1.42.3 |
| Red Hat / Red Hat Enterprise Linux 10 | affected |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization | unknown |
| Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization | unknown |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
CWE
CWE-190
References
- https://access.redhat.com/security/cve/CVE-2025-47712
- https://bugzilla.redhat.com/show_bug.cgi?id=2365724
- https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/67E7AASHHADIY7VAD3FFW2I67LTWVWYF/
ADP enrichment
No English description supplied.
No references supplied.