Vulnerabilities > CVE-2020-11683 - Information Exposure Through Discrepancy vulnerability in Linux4Sam At91Bootstrap
Attack vector
PHYSICAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/linux4sam/at91bootstrap/commit/7753914c9a622c245f3a3cf2af5e24b6a9904213
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/
- https://github.com/linux4sam/at91bootstrap/commit/7753914c9a622c245f3a3cf2af5e24b6a9904213
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/