CVE-2022-2576

HIGH

Eclipse Californium 2.0.0-2.7.2 and 3.0.0-3.5.0 - Denial of Service via DTLS Resumption Handshake Fallback

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugs.eclipse.org/580018

Scores

CVSS v3 7.5
EPSS 0.0020
EPSS Percentile 42.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-408
Status published
Products (2)
eclipse/californium 2.0.0 - 2.7.2
org.eclipse.californium/californium-core 2.0.0 - 2.7.3Maven
Published Jul 29, 2022
Tracked Since Feb 18, 2026