CVE-2020-11683
MEDIUMLinux4sam At91bootstrap < 3.9.2 - Information Disclosure
Title source: ruleDescription
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.
References (2)
Core 2
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/linux4sam/at91bootstrap/commit/7753914c9a622c245f3a3cf2af5e24b6a9904213
Exploit, Third Party Advisory x_refsource_misc
https://labs.f-secure.com/advisories/microchip-at91bootstrap/
Scores
CVSS v3
6.8
EPSS
0.0006
EPSS Percentile
18.1%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-203
Status
published
Products (1)
linux4sam/at91bootstrap
3.7.2 - 3.9.2
Published
Sep 14, 2020
Tracked Since
Feb 18, 2026