Linux4sam: >> At91bootstrap Security Vulnerabilities
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.
CVSS Score
6.8
EPSS Score
0.001
Published
2020-09-14
AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control to a less privileged software component. This can be exploited to disclose these keys and subsequently encrypt and sign the next boot stage (such as the bootloader).
CVSS Score
9.1
EPSS Score
0.002
Published
2020-09-14