FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

dnsdist -- Transfer requests received over DoH can lead to a denial of service

Affected packages
dnsdist < 1.9.4


VuXML ID f2d8342f-1134-11ef-8791-6805ca2fa271
Discovery 2024-05-13
Entry 2024-05-13

PowerDNS Security Advisory reports:

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.


CVE Name CVE-2024-25581