Resource exhaustion in Cloudflare Octorpki
CVE-2021-3908
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (49.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cloudflare Octorpki — versions unspecified
- Debian Debian_linux — versions 11.0
Weakness classification (CWE)
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-2021-3908?
- CVE-2021-3908 is a medium-severity vulnerability in Cloudflare Octorpki, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2021-11-11.
- How severe is CVE-2021-3908?
- Medium severity. CVSS v3 base score is 5.9 out of 10.