CRITICAL🇵🇱 Wersja polska

CVE-2021-42143

CVSS 9.1v3.1pub. 2024-01-24upd. 2025-06-20

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. An infinite loop bug exists during the handling of a ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all resources) and a buffer over-read that can disclose sensitive information.

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

  • Contiki Ng Tinydtls

    APP
    Contiki-Ng
    ≤ 2018-08-30
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
DoS
CWE
References

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