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.Referenceshttps://github.com/linux4sam/at91bootstrap/commit/7753914c9a622c245f3a3cf2af5e24b6a9904213https://labs.f-secure.com/advisories/microchip-at91bootstrap/
