CVE-2021-3908

low-risk
Published 2021-11-11

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.

Do I need to act?

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0.29% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (2)

Octorpki

Affected Vendors

Debian Cloudflare

References (4)

Third Party Advisory https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmq
Third Party Advisory https://www.debian.org/security/2022/dsa-5041
Third Party Advisory https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmq
Third Party Advisory https://www.debian.org/security/2022/dsa-5041
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low