CVE-2022-33992 Information

Description

DNRD (aka Domain Name Relay Daemon) 2.20.3 forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

Reference

http://dnrd.sourceforge.net/ https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner https://www.openwall.com/lists/oss-security/2022/08/14/1