Provide references for CVE-2021-3907.
Where can I find more information about CVE-2021-3907?
References are available at: https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fh, https://www.debian.org/security/2021/dsa-5033, https://www.debian.org/security/2022/dsa-5041, https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959.