CVE-2020-11683

Public Exploit

Description

A timing side channel was discovered in AT91bootstrap before 3.9.2. It can be exploited by attackers with physical access to forge CMAC values and subsequently boot arbitrary code on an affected system.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory github.com Third-Party Advisory f-secure.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/linux4sam/at91bootstrap/commit/7753914c9a622c245f3a3cf2af5e24b6a9904213 third party advisory patch
https://labs.f-secure.com/advisories/microchip-at91bootstrap/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-11683?
CVE-2020-11683 has been scored as a medium severity vulnerability.
How to fix CVE-2020-11683?
To fix CVE-2020-11683, 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-2020-11683 being actively exploited in the wild?
It is possible that CVE-2020-11683 is being exploited or will be exploited in a near future based on public information. 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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