Overview
- 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.
- Source
- emo@eclipse.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
- emo@eclipse.org
- CWE-408
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7FB01D5-BA10-4357-9F61-F56D244CA986",
"versionEndIncluding": "2.7.2",
"versionStartIncluding": "2.0.0"
},
{
"criteria": "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5C28E170-E7E3-4E2D-9A4F-E65EF4F81678",
"versionEndIncluding": "3.5.0",
"versionStartIncluding": "3.0.0"
}
],
"operator": "OR"
}
]
}
]