CVE-2022-33993

medium

Description

Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.

References

Advisories

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

https://www.usenix.org/conference/usenixsecurity21/presentation/jeitner

https://www.openwall.com/lists/oss-security/2022/08/14/1

http://dnrd.sourceforge.net/

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