CVE-2024-25581 — Transfer requests received over DoH can lead to a denial of service in DNSdist
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 fa…
Published: 2024-05-13 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7