CVE-2020-27211

Description

Nordic Semiconductor nRF52840 devices through 2020-10-19 have improper protection against physical side channels. The flash read-out protection (APPROTECT) can be bypassed by injecting a fault during the boot phase.

Category

5.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory iacr.org Third-Party Advisory nordicsemi.com Third-Party Advisory limitedresults.com Third-Party Advisory fraunhofer.de Third-Party Advisory fraunhofer.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.aisec.fraunhofer.de/en/FirmwareProtection.html third party advisory
https://eprint.iacr.org/2021/640 third party advisory
https://limitedresults.com/2020/06/nrf52-debug-resurrection-approtect-bypass/ third party advisory
https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf 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-2020-27211?
CVE-2020-27211 has been scored as a medium severity vulnerability.
How to fix CVE-2020-27211?
To fix CVE-2020-27211, 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-2020-27211 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27211 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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