CVE-2022-33991

medium

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.

References

Advisories
More

https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner

https://sourceforge.net/projects/dproxy/

https://www.openwall.com/lists/oss-security/2022/08/14/3

Details

Source: Mitre, NVD

Published: 2022-08-15

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N