CVE-2021-29415

Name of the Vulnerable Software and Affected Versions: NordicSemiconductor nRF52840 versions prior to 2021-03-29

Description: The issue concerns a non-constant time ECDSA implementation in the elliptic curve cryptography (ECC) hardware accelerator, part of the ARM TrustZone CryptoCell 310. This allows an adversary to recover the private ECC key used during an ECDSA operation.

Recommendations: For versions prior to 2021-03-29, at the moment, there is no information about a newer version that contains a fix for this issue.