Filtered by vendor Fastd Project
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Filtered by product Fastd
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Total
2 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2025-24356 | 1 Fastd Project | 1 Fastd | 2025-08-27 | 7.5 High |
| fastd is a VPN daemon which tunnels IP packets and Ethernet frames over UDP. When receiving a data packet from an unknown IP address/port combination, fastd will assume that one of its connected peers has moved to a new address and initiate a reconnect by sending a handshake packet. This "fast reconnect" avoids having to wait for a session timeout (up to ~90s) until a new connection is established. Even a 1-byte UDP packet just containing the fastd packet type header can trigger a much larger handshake packet (~150 bytes of UDP payload). Including IPv4 and UDP headers, the resulting amplification factor is roughly 12-13. By sending data packets with a spoofed source address to fastd instances reachable on the internet, this amplification of UDP traffic might be used to facilitate a Distributed Denial of Service attack. This vulnerability is fixed in v23. | ||||
| CVE-2020-27638 | 3 Debian, Fastd Project, Fedoraproject | 3 Debian Linux, Fastd, Fedora | 2024-11-21 | 7.5 High |
| receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. | ||||
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