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Security Advisories: GSA_kwCzR0hTQS1xcTNqLTQ0Z3ctY2Y2cs4AAtvo

Eclipse Californium denial of service (DoS) via Datagram Transport Layer Security (DTLS) handshake on parameter mismatch

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.

Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 10 months ago
Updated: about 2 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-qq3j-44gw-cf6r, CVE-2022-2576

Affected Packages

Versions: >= 3.0.0, <= 3.5.0, >= 2.0.0, <= 2.7.2
Fixed in: 3.6.0, 2.7.3