Vulnerability Description
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
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux4Sam | At91Bootstrap | >= 3.7.2, < 3.9.2 |
Related Weaknesses (CWE)
References
- https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aPatchThird Party Advisory
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/ExploitThird Party Advisory
- https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aPatchThird Party Advisory
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/ExploitThird Party Advisory
FAQ
What is CVE-2020-11684?
CVE-2020-11684 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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...
How severe is CVE-2020-11684?
CVE-2020-11684 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-11684?
Check the references section above for vendor advisories and patch information. Affected products include: Linux4Sam At91Bootstrap.