CVE-2021-3909: Uncontrolled Resource Consumption

November 11, 2021 (updated April 4, 2022)

OctoRPKI does not limit the length of a connection, allowing for a slowloris DoS attack to take place which makes OctoRPKI wait forever. Specifically, the repository that OctoRPKI sends HTTP requests to will keep the connection open for a day before a response is returned, but does keep drip feeding new bytes to keep the connection alive.

References

github.com/cloudflare/cfrpki/security/advisories/GHSA-8cvr-4rrf-f244
nvd.nist.gov/vuln/detail/CVE-2021-3909

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