CVE-2023-3724

Katalog CVE

CVSS 8.8 · High EPSS 0,65%

Kerentanan Improper Input Validation pada wolfssl. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used. 

Rincian

Terbit di NVD

17 Juli 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-295: Improper Certificate Validation

EPSS (30 hari)

0,65% peluang dieksploitasi; lebih tinggi dari 49,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.wolfssl.com/docs/security-vulnerabilities/ advisory vendor
• https://github.com/wolfSSL/wolfssl/pull/6412 patch