CVE Catalog

CVE-2006-4251

High
Published: Translated: NVD NIST

Summary

Buffer overflow in PowerDNS Recursor 3.1.3 and earlier might allow remote attackers to execute arbitrary code via a malformed TCP DNS query that prevents Recursor from properly calculating the TCP DNS query length.

Risk Assessment

This vulnerability could allow remote code execution on the DNS server, posing a critical risk to confidentiality, integrity, and availability.

Recommendation

Update PowerDNS Recursor to a version later than 3.1.3. If immediate update is not possible, consider restricting access to the DNS service on TCP port.

Related vulnerabilities

Original NVD description (English source)

Buffer overflow in PowerDNS Recursor 3.1.3 and earlier might allow remote attackers to execute arbitrary code via a malformed TCP DNS query that prevents Recursor from properly calculating the TCP DNS query length.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS