CVE-2020-12457

Katalog CVE

CVSS 7.5 · High EPSS 1,5%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada wolfssl. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of service.

Rincian

Terbit di NVD

21 Agustus 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

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

EPSS (30 hari)

1,5% peluang dieksploitasi; lebih tinggi dari 74,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/wolfSSL/wolfssl/pull/2927 patch · advisory pihak ketiga
• https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable advisory pihak ketiga