CVE-2022-33991 Information

Description

dproxy-nexgen (aka dproxy nexgen) 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

https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner https://sourceforge.net/projects/dproxy/ https://www.openwall.com/lists/oss-security/2022/08/14/3