VULNERABILITY INTELLIGENCE

CVE-2022-2576

CVSS score7.5 HIGH
EPSS probability0.61%
CISA KEVNot currently listed
Published2022-07-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • emo@eclipse.org: CWE-408
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references