CVE-2021-29415

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory iacr.org Third-Party Advisory fraunhofer.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.sit.fraunhofer.de/en/news-events/downloads-services/cve/ not applicable
https://eprint.iacr.org/2021/640 third party advisory
https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-29415?
CVE-2021-29415 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29415?
To fix CVE-2021-29415, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29415 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29415 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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