CVE-2025-25188 Information

Description

Hickory DNS is a Rust based DNS client server and resolver. A vulnerability present starting in version 0.8.0 and prior to versions 0.24.3 and 0.25.0-alpha.5 impacts Hickory DNS users relying on DNSSEC verification in the client library stub resolver or recursive resolver. The DNSSEC validation routines treat entire RRsets of DNSKEY records as trusted once they have established trust in only one of the DNSKEYs. As a result if a zone includes a DNSKEY with a public key that matches a configured trust anchor all keys in that zone will be trusted to authenticate other records in the zone. There is a second variant of this vulnerability involving DS records where an authenticated DS record covering one DNSKEY leads to trust in signatures made by an unrelated DNSKEY in the same zone. Versions 0.24.3 and 0.25.0-alpha.5 fix the issue.

Reference

https://github.com/hickory-dns/hickory-dns/commit/e118c6eec569f4340421f86ee0686714010c63e9 https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-37wc-h8xc-5hc4