Name: CVE-2020-36475: Incorrect Calculation of Buffer Size
Creator: Rapid7
Published: 2021-08-23T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-36475, CWE-131, CVSS 7.5, EPSS 0.00979

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade mbedtls	Nov 29, 2021	Aug 23, 2021
Gentoo Linux	—	Upgrade net-libs/mbedtls.	Jan 12, 2023	Aug 23, 2021

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CVSS Details

Covered by Rapid7

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