Denial of Service Vulnerability in DNSdist from PowerDNS
CVE-2025-30193

7.5HIGH

Key Information:

Vendor

Powerdns

Status
Dnsdist
Vendor
CVE Published:
20 May 2025

What is CVE-2025-30193?

A vulnerability within DNSdist allows an attacker to trigger a denial of service condition by exploiting an unlimited query configuration over a single TCP connection, potentially leading to a stack exhaustion and crash of the service. It is crucial for users to upgrade to version 1.9.10 or apply appropriate configuration settings to limit the maximum number of queries, thus ensuring service stability and security.

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Affected Version(s)

DNSdist 1.9.10

References

https://dnsdist.org/security-advisories/powerdns-advisory...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Renaud Allard
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