CVE-2021-42141

Published Jan 22, 2024

Last updated 5 months ago

CVSS critical 9.8

Overview

Description: An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.
Source: cve@mitre.org
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-755

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "E938DF84-2663-4516-87E3-B7E46789F6A1",
            "versionEndIncluding": "2018-08-30"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References