CVE-2020-36422 Information

Description

An issue was discovered in Arm Mbed TLS before 2.23.0. A side channel allows recovery of an ECC private key related to mbedtls_ecp_check_pub_priv mbedtls_pk_parse_key mbedtls_pk_parse_keyfile mbedtls_ecp_mul and mbedtls_ecp_mul_restartable.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://bugs.gentoo.org/730752 https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0 https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3