CVE-2021-42147

Published Jan 24, 2024

Last updated 5 months ago

CVSS critical 9.1

Overview

Description: Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.
Source: cve@mitre.org
NVD status: Modified

Risk scores

CVSS 3.1

Type: Primary
Base score: 9.1
Impact score: 5.2
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Severity: CRITICAL

Weaknesses

nvd@nist.gov: CWE-125

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "90402650-48E8-4C88-9306-B32811E56046"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References