CVE-2023-1732

Katalog CVE

CVSS 8.2 · High EPSS 0,39%

Kerentanan Improper Input Validation pada cloudflare circl. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

When sampling randomness for a shared secret, the implementation of Kyber and FrodoKEM, did not check whether crypto/rand.Read() returns an error. In rare deployment cases (error thrown by the Read() function), this could lead to a predictable shared secret. The tkn20 and blindrsa components did not check whether enough randomness was returned from the user provided randomness source. Typically the user provides crypto/rand.Reader, which in the vast majority of cases will always return the right number random bytes. In the cases where it does not, or the user provides a source that does not, the blinding for blindrsa is weak and integrity of the plaintext is not ensured in tkn20.

Rincian

Terbit di NVD

10 Mei 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-755: Improper Handling of Exceptional Conditions

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 30,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/cloudflare/circl/security/advisories/GHSA-2q89-485c-9j2x advisory vendor