CVE-2020-36422

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-203

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory
https://bugs.gentoo.org/730752Issue Tracking, Patch, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7Release Notes, Third Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing List, Third Party Advisory

Timeline

Published: Jul 19, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-364237.5An issue was discovered in Arm Mbed TLS before 2.23.0. A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doe CVE-2020-364244.7An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-Hellman) via a side-c CVE-2020-364255.3An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate CVE-2020-364267.5An issue was discovered in Arm Mbed TLS before 2.24.0. mbedtls_x509_crl_parse_der has a buffer over-read (of one byte).CVE-2020-364275.5GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.CVE-2020-364288.8matio (aka MAT File I/O Library) 1.5.18 through 1.5.21 has a heap-based buffer overflow in ReadInt32DataDouble (called from ReadInt32Data an CVE-2020-364295.5Variant_encodeJson in open62541 1.x before 1.0.4 has an out-of-bounds write for a large recursion depth.CVE-2020-36435.5u'Information disclosure issue can occur due to partial secure display-touch session tear-down' in Snapdragon Auto, Snapdragon Compute, Snap CVE-2020-364307.8libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong in CVE-2020-364315.5Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.CVE-2020-364329.8An issue was discovered in the alg_ds crate through 2020-08-25 for Rust. There is a drop of uninitialized memory in Matrix::new().CVE-2020-364337.5An issue was discovered in the chunky crate through 2020-08-25 for Rust. The Chunk API does not honor an alignment requirement.