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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-30193 Detail

Description

In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.10 version. A workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting. We would like to thank Renaud Allard for bringing this issue to our attention.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-03.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-674 Uncontrolled Recursion Open-Xchange  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-30193
NVD Published Date:
05/20/2025
NVD Last Modified:
05/21/2025
Source:
Open-Xchange