CVE-2022-33989 Information

Description

dproxy-nexgen (aka dproxy nexgen) uses a static UDP source port (selected randomly only at boot time) in upstream queries sent to DNS resolvers. This allows DNS cache poisoning because there is not enough entropy to prevent traffic injection attacks.

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