eclipse/californium · Security
Eclipse Californium denial of service (DoS) via Datagram Transport Layer Security (DTLS) handshake on parameter mismatch
- GHSA ID
- GHSA-qq3j-44gw-cf6r
- CVE ID
- CVE-2022-2576
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In Eclipse Californium versions 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.
CWEs
- CWE-408 · Incorrect Behavior Order: Early Amplification
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-2576 ↗
- https://bugs.eclipse.org/580018 ↗
- https://github.com/eclipse-californium/californium/pull/2039 ↗
- https://github.com/eclipse-californium/californium/commit/0cc953a1dc071efc960130e229fcb4f8bda7f9df ↗
- https://github.com/eclipse-californium/californium/commit/8373db84b2d07f22c39ffc333ab881dba9401722 ↗
- https://github.com/advisories/GHSA-qq3j-44gw-cf6r ↗