Input validation error in PowerDNS Recursor - CVE-2024-25583

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Main Vulnerability Database Vulnerabilities #VU88975

Input validation error in PowerDNS Recursor - CVE-2024-25583

Published: April 24, 2024


Vulnerability identifier: #VU88975
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-25583
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to insufficient validation of user-supplied input from an upstream server if recursive forwarding is configured. A remote attacker can send specially crafted DNS response to the server and perform a denial of service (DoS) attack.


Affected software

PowerDNS Recursor
Debian Linux
pdns-recursor (Debian package)

How to mitigate CVE-2024-25583

Install updates from vendor's website.

PowerDNS Recursor - addressed in versions 4.8.8, 4.9.5, 5.0.4
pdns-recursor (Debian package) - update to 4.8.8-1

External References

Related Security Bulletins