CVE-2022-33993

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.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.09%

Third-Party Advisory sourceforge.net Third-Party Advisory openwall.com Third-Party Advisory usenix.org Third-Party Advisory usenix.org

Affected: n/a n/a

References

Link	Tags
https://www.usenix.org/conference/usenixsecurity21/presentation/jeitner	third party advisory
https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner	third party advisory
http://dnrd.sourceforge.net/	third party advisory product
https://www.openwall.com/lists/oss-security/2022/08/14/1	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2022-33993?: CVE-2022-33993 has been scored as a medium severity vulnerability.
How to fix CVE-2022-33993?: To fix CVE-2022-33993, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-33993 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-33993 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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