Medium severity · published May 21, 2021
CVE-2021-29415
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…
5.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NF
Nrf52840 Firmware · Nordicsemi
through 2021-03-29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29415
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29415
Third Party Advisory
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
Not Applicable
https://www.sit.fraunhofer.de/en/news-events/downloads-services/cve/
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