Vulnerability Description
When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2024/05/13/1
- https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.ht
- http://www.openwall.com/lists/oss-security/2024/05/13/1
- https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.ht
FAQ
What is CVE-2024-25581?
CVE-2024-25581 is a vulnerability with a CVSS score of 7.5 (HIGH). When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sen...
How severe is CVE-2024-25581?
CVE-2024-25581 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-25581?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.