What is CVE-2022-3204?

CVE-2022-3204 is a high-severity vulnerability in Nlnet Labs Unbound, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-09-26.

How severe is CVE-2022-3204?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Nlnet Labs Unbound

CVE-2022-3204

A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsi…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.013 (67.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Nlnet Labs Unbound — versions unspecified
Nlnetlabs Unbound
Fedoraproject Fedora — versions 35, 36, 37

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

sep@nlnetlabs.nl (Vendor Advisory)
sep@nlnetlabs.nl (vendor-advisory)
sep@nlnetlabs.nl (vendor-advisory)
sep@nlnetlabs.nl (vendor-advisory)
sep@nlnetlabs.nl (vendor-advisory, Third Party Advisory)
sep@nlnetlabs.nl (mailing-list)

Frequently asked questions

What is CVE-2022-3204?: CVE-2022-3204 is a high-severity vulnerability in Nlnet Labs Unbound, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-09-26.
How severe is CVE-2022-3204?: High severity. CVSS v3 base score is 7.5 out of 10.