CVE-2020-36422: 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…

PriorityP425medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

1.26%

66.0th percentile

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.

Affected

10 ranges

Vendor	Product	Version range	Fixed in
arm	mbed_tls	< 2.16.7	2.16.7
arm	mbed_tls	>= 2.17.0 < 2.23.0	2.23.0
debian	debian_linux	—	—
debian	mbedtls	< mbedtls 2.16.9-0.1 (bookworm)	mbedtls 2.16.9-0.1 (bookworm)
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
mbed	mbedtls	>= 0 < 2.16.9-0.1	2.16.9-0.1
msrc	azl3_qemu_8.2.0-16_on_azure_linux_3.0	—	—
msrc	cbl2_qemu_6.2.0-24_on_cbl_mariner_2.0	—	—

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

osv5.3MEDIUM

vendor_debian5.3MEDIUM

vendor_msrc5.3MEDIUM

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