EUVD-2025-17436CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
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.
Analysis
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.
Technical Context
An integer overflow occurs when an arithmetic operation produces a value that exceeds the maximum (or minimum) size of the integer type used to store it. This vulnerability is classified as Integer Overflow or Wraparound (CWE-190).
Affected Products
Affected products: Nbdkit Project Nbdkit -
Remediation
Use safe integer arithmetic libraries. Check for overflow conditions before operations. Use appropriately sized integer types.
Priority Score
Vendor Status
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| xenial | needs-triage | - |
| focal | needs-triage | - |
| jammy | needs-triage | - |
| noble | needs-triage | - |
| plucky | ignored | end of life, was needs-triage |
| upstream | needs-triage | - |
| oracular | ignored | end of life, was needs-triage |
| questing | needs-triage | - |
Debian
Bug #1105228| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 1.24.1-2 | - |
| bookworm | vulnerable | 1.32.5-1 | - |
| trixie | fixed | 1.42.3-1 | - |
| forky, sid | fixed | 1.46.2-1 | - |
| (unstable) | fixed | 1.42.3-1 | - |
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External POC / Exploit Code
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