CVE-2022-2576
maven/org.eclipse.californium/californium-core
Uncontrolled Resource Consumption
In Eclipse Californium version 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 DTLSVERIFYPEERSONRESUMPTION_THRESHOLD values larger than 0.
All versions starting from 2.0.0 up to 2.7.2, all versions starting from 3.0.0 up to 3.5.0
Upgrade to versions 2.7.3, 3.6.0 or above.
2022-08-09
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