What is CVE-2021-3911?

CVE-2021-3911 is a medium-severity vulnerability in Cloudflare Octorpki, classified under Improper Input Validation. CVSS score: 4.2/10. Published 2021-11-11.

How severe is CVE-2021-3911?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Improper input validation in Cloudflare Octorpki

CVE-2021-3911

If the ROA that a repository returns contains too many bits for the IP address then OctoRPKI will crash.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.009 (55.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H.

Affected products

Cloudflare Octorpki — versions unspecified
Debian Debian_linux — versions 11.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation
CWE-252

References

cna@cloudflare.com (Third Party Advisory, x_refsource_MISC)
cna@cloudflare.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2021-3911?: CVE-2021-3911 is a medium-severity vulnerability in Cloudflare Octorpki, classified under Improper Input Validation. CVSS score: 4.2/10. Published 2021-11-11.
How severe is CVE-2021-3911?: Medium severity. CVSS v3 base score is 4.2 out of 10.