Design/Logic Flaw

2021-05-2112:15:00

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5.5 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.2%

JSON

The elliptic curve cryptography (ECC) hardware accelerator, part of the ARM® TrustZone® CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operation.

CPENameOperatorVersion
nrf52840_firmwareeq<= 2021329

CPE	Name	Operator	Version
	nrf52840_firmware	eq	<= 2021329

References

eprint.iacr.org/2021/640

www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html

www.sit.fraunhofer.de/en/news-events/downloads-services/cve/