SB2025071472 - SUSE update for nbdkit 

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Main Vulnerability Database SB2025071472

SB2025071472 - SUSE update for nbdkit

Published: July 14, 2025

Security Bulletin ID SB2025071472
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Off-by-one (CVE-ID: CVE-2025-47711)

The vulnerability allows a remote user to perform a denial of service attack.

The vulnerability exists due to an off-by-one error handling responses from its plugins regarding the status of data blocks. A remote client can request for a very large data range to trigger an off-by-one error and crash the server. 


2) Reachable assertion (CVE-ID: CVE-2025-47712)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion in the nbdkit "blocksize" filter. A remote client can request block status information for a very large data range, trigger an integer overflow and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References