CVE-2020-36475

Katalog CVE

CVSS 7.5 · High EPSS 1,9%

Kerentanan Incorrect Calculation of Buffer Size 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). The calculations performed by mbedtls_mpi_exp_mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs.

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:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-131: Incorrect Calculation of Buffer Size

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 79,3% 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/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