CVE-2022-2576
7.5CVSSHIGH
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Exploitability
Official Patch Available
References
https://bugs.eclipse.org/580018
bugs.eclipse.org
https://nvd.nist.gov/vuln/detail/CVE-2022-2576
nvd.nist.gov
https://github.com/eclipse-californium/californium/pull/2039
github.com
and 3 more references View all →
Timeline
Published
Jul 29, 2022
Last Updated
Nov 21, 2024
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