CVE-2020-20949

Katalog CVE

CVSS 5.9 · Medium EPSS 0,93%

Kerentanan Use of a Broken or Risky Cryptographic Algorithm pada stm32cubef0, stm32cubef1 +20 lainnya. Skor CVSS 3.1 5.9 (Medium) menurut NVD.

Deskripsi (NVD)

Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in STM32 cryptographic firmware library software expansion for STM32Cube (UM1924). The vulnerability can allow one to use Bleichenbacher's oracle attack to decrypt an encrypted ciphertext by making successive queries to the server using the vulnerable library, resulting in remote information disclosure.

Rincian

Terbit di NVD

20 Januari 2021

Terakhir diubah

9 Juli 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-327: Use of a Broken or Risky Cryptographic Algorithm

EPSS (30 hari)

0,93% peluang dieksploitasi; lebih tinggi dari 59,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://archiv.infsec.ethz.ch/education/fs08/secsem/bleichenbacher98.pdf deskripsi teknis · advisory pihak ketiga
• https://bi-zone.medium.com/silence-will-fall-or-how-it-can-take-2-years-to-get-your-vuln-registered-e6134846f5... deskripsi teknis · advisory pihak ketiga
• https://www.st.com/en/embedded-software/x-cube-cryptolib.html advisory pihak ketiga