CVE-2021-3908
HIGHCVSS 7.5/10EPSS 0.71%
Last modified
CVE-2021-3908 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.71% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cloudflare | Octorpki | < 1.3.0 |
| Debian | Debian Linux | 11.0 |
References
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmqThird Party Advisory
- https://www.debian.org/security/2022/dsa-5041Third Party Advisory
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-g5gj-9ggf-9vmqThird Party Advisory
- https://www.debian.org/security/2022/dsa-5041Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2021-3908?
CVE-2021-3908 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3908?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-39072IBM Security Guardium 11.3 could allow a remote attacker to …5.9
- CVE-2021-39074IBM Security Guardium 11.4 is vulnerable to cross-site scrip…6.1
- CVE-2021-39076IBM Security Guardium 10.5 and 11.3 uses weaker than expecte…7.5
- CVE-2021-39077IBM Security Guardium 10.5, 10.6, 11.0, 11.1, 11.2, 11.3, an…4.4
- CVE-2021-39078IBM Security Guardium 10.5 stores user credentials in plain …4.4
- CVE-2021-39079IBM Cognos Analytics Mobile for Android applications prior t…5.4
- CVE-2021-39080Due to weak obfuscation, IBM Cognos Analytics Mobile for And…6.5
- CVE-2021-39081IBM Cognos Analytics Mobile for Android 1.1.14 uses weaker t…7.5
- CVE-2021-39082IBM UrbanCode Deploy (UCD) 7.1.1.2 uses weaker than expected…7.5
- CVE-2021-39085IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through…9.8
- CVE-2021-39086IBM Sterling File Gateway 6.0.0.0 through 6.0.3.5, 6.1.0.0 t…5.3
- CVE-2021-39087IBM Sterling B2B Integrator Standard Edition 6.0.0.0 through…6.5
Are you affected by CVE-2021-3908?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST