What is CVE-2021-43172?

CVE-2021-43172 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2021-11-09.

How severe is CVE-2021-43172?

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

Vulnerability in Nlnet Labs Routinator

CVE-2021-43172

NLnet Labs Routinator prior to 0.10.2 happily processes a chain of RRDP repositories of infinite length causing it to never finish a validation run. In RPKI, a CA can choose the RRDP repository it wishes to publish its data in. By continuo…

EPSS: 0.012 (64.9th 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 Routinator — versions unspecified
Nlnetlabs Routinator

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion
CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

sep@nlnetlabs.nl (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-43172?: CVE-2021-43172 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2021-11-09.
How severe is CVE-2021-43172?: High severity. CVSS v3 base score is 7.5 out of 10.