CVE-2020-36478

Katalog CVE

CVSS 7.5 · High EPSS 1,1%

Kerentanan Improper Certificate Validation pada arm mbed tls, siemens logo! cmr2020 firmware +6 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). A NULL algorithm parameters entry looks identical to an array of REAL (size zero) and thus the certificate is considered valid. However, if the parameters do not match in any way, then the certificate should be considered invalid.

Rincian

Terbit di NVD

23 Agustus 2021

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:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-295: Improper Certificate Validation

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 64,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cert-portal.siemens.com/productcert/pdf/ssa-756638.pdf patch · advisory pihak ketiga
• https://github.com/ARMmbed/mbedtls/issues/3629 exploit · advisory pihak ketiga
• https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9 release notes · advisory pihak ketiga
• https://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0 release notes · advisory pihak ketiga
• https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.18 release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html mailing list · advisory pihak ketiga