CVE-2020-36422
First published: Mon Jul 19 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ARM mbed TLS | <2.16.7 | |
| ARM mbed TLS | >=2.17.0<2.23.0 | |
| Debian Debian Linux | =10.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-36422.
What is the severity of CVE-2020-36422?
The severity of CVE-2020-36422 is medium with a CVSS score of 5.3.
Which software is affected by CVE-2020-36422?
Arm Mbed TLS versions up to and including 2.16.7 and versions between 2.17.0 and 2.23.0, as well as Debian Linux version 10.0, are affected by CVE-2020-36422.
What is the issue with CVE-2020-36422?
CVE-2020-36422 is a side channel vulnerability that allows an attacker to recover an ECC private key through various functions in Arm Mbed TLS.
How can I fix CVE-2020-36422?
To fix CVE-2020-36422, update to a version of Arm Mbed TLS that is later than 2.23.0 or apply the necessary patches provided by the software vendor.
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