CVE-2021-42143

Katalog CVE

CVSS 9.1 · Critical EPSS 0,81%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada contiki-ng tinydtls. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

24 Januari 2024

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,81% peluang dieksploitasi; lebih tinggi dari 55,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://seclists.org/fulldisclosure/2024/Jan/16 mailing list · advisory pihak ketiga
• http://seclists.org/fulldisclosure/2024/Jan/16