cfrpki: OctoRPKI does not limit the length of a connection, allowing for a slowloris DOS attack to take place which makes Oct...
CVE-2021-3909 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2021-3909, released November 11, 2021. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cfrpki · Debian 12.15 (bookworm) | 1.4.0-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| fort-validator · Debian 12.15 (bookworm) | 1.5.3-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| fort-validator · Debian 13.5 (trixie) | 1.5.3-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| fort-validator · Debian 14 | 1.5.3-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| rpki-client · Debian 12.15 (bookworm) | 7.5-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| rpki-client · Debian 13.5 (trixie) | 7.5-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
| rpki-client · Debian 14 | 7.5-1 | DEBIAN-CVE-2021-3909 | Nov 11, 2021 |
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