CVE-2022-39368 Californium Failing DTLS handshakes causes Data Loss due to throttling blocking processing of records

2022-11-0900:00:00

CWE-459

CWE-404

GitHub_M

www.cve.org

eclipse californium

cve-2022-39368

failing dtls handshakes

data loss

throttling blocking processing

rfc7252

iot cloud services

denial of service

certificate based handshakes

psk based handshakes

client

server

patched

no workarounds

8.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

8.1 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.3%

JSON

Eclipse Californium is a Java implementation of RFC7252 - Constrained Application Protocol for IoT Cloud services. In versions prior to 3.7.0, and 2.7.4, Californium is vulnerable to a Denial of Service. Failing handshakes don’t cleanup counters for throttling, causing the threshold to be reached without being released again. This results in permanently dropping records. The issue was reported for certificate based handshakes, but may also affect PSK based handshakes. It generally affects client and server as well. This issue is patched in version 3.7.0 and 2.7.4. There are no known workarounds. main: commit 726bac57659410da463dcf404b3e79a7312ac0b9 2.7.x: commit 5648a0c27c2c2667c98419254557a14bac2b1f3f

CNA Affected

[
  {
    "vendor": "eclipse-californium",
    "product": "californium",
    "versions": [
      {
        "version": ">= 2.7.0, < 2.7.4",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0, < 3.7.0",
        "status": "affected"
      }
    ]
  }
]