CVE-2021-3909
Medium
Description
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.
SeverityMedium
CVSS4.4
Exploit probability—
Product
Cloudflare Octorpki
PublishedNov 11, 2021
First seenNov 11, 2021
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- cloudflare octorpki1.3.0 or later
- github.com/cloudflare/cfrpki1.4.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cloudflare octorpki | v < 1.3.0 | 1.3.0 |
| debian debian_linux | 11.0 | — |
| github.com/cloudflare/cfrpkiGo | v < 1.4.0 | 1.4.0 |
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