CVE-2022-2576
First published: Fri Jul 29 2022(Updated: )
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 DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.
Credit: emo@eclipse.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Eclipse Californium | >=2.0.0<=2.7.2 | |
| Eclipse Californium | >=3.0.0<=3.5.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-2576?
CVE-2022-2576 is a vulnerability in Eclipse Californium that allows for a DTLS resumption handshake to fall back to a full handshake on a parameter mismatch, leading to potential DDoS attacks.
What is the severity of CVE-2022-2576?
CVE-2022-2576 has a severity rating of 7.5 (High).
Which versions of Eclipse Californium are affected by CVE-2022-2576?
CVE-2022-2576 affects Eclipse Californium versions 2.0.0 to 2.7.2 and 3.0.0 to 3.5.0.
How does CVE-2022-2576 impact the affected software?
CVE-2022-2576 can result in message amplification (DDoS other peers) if used with certificate-based cipher suites.
Is there a fix available for CVE-2022-2576?
At the moment, there is no known fix or patch available for CVE-2022-2576.
- collector/nvd-index
- agent/type
- vendor/eclipse
- canonical/eclipse californium
- version/eclipse californium/2.0.0
- version/eclipse californium/2.7.2
- version/eclipse californium/3.0.0
- version/eclipse californium/3.5.0