CVE-2022-33993 — MEDIUM (5.3)

Vulnerability 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.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Domain Name Relay Daemon Project	Domain Name Relay Daemon	2.20.3

References

http://dnrd.sourceforge.net/ProductThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/1Mailing ListThird Party Advisory
https://www.usenix.org/conference/usenixsecurity21/presentation/jeitnerThird Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerThird Party Advisory
http://dnrd.sourceforge.net/ProductThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/08/14/1Mailing ListThird Party Advisory
https://www.usenix.org/conference/usenixsecurity21/presentation/jeitnerThird Party Advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitnerThird Party Advisory

FAQ

What is CVE-2022-33993?

CVE-2022-33993 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 mi...

How severe is CVE-2022-33993?

CVE-2022-33993 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-33993?

Check the references section above for vendor advisories and patch information. Affected products include: Domain Name Relay Daemon Project Domain Name Relay Daemon.