CVE-2021-3908

MEDIUM5.9EPSS 0.29%

Infinite certificate chain depth results in OctoRPKI running forever

Published: 11/10/2021Modified: 3/13/2026

Also known as:GHSA-g5gj-9ggf-9vmqGO-2022-0249

Description

OctoRPKI (github.com/cloudflare/cfrpki/cmd/octorpki) does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end. ### For more information If you have any questions or comments about this advisory email us at [email protected]

Affected packages (3)

Debian/cfrpkifrom 0, < 1.4.2-1~deb11u1
Go/github.com/cloudflare/cfrpkifrom 0, < 1.4.0
Go/github.com/cloudflare/cfrpkifrom 0, < 1.4.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-3908
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-3908
PATCHhttps://github.com/cloudflare/cfrpki
WEBhttps://github.com/cloudflare/cfrpki/releases/tag/v1.4.0
WEBhttps://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmq
WEBhttps://www.debian.org/security/2022/dsa-5041