CVEvulnerability
CVE-2020-11684
9.1 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-09-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-212
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).
Affected configurations
• linux4sam at91bootstrap (>= 3.7.2 < 3.9.2)
Related
Weakness · CWE (1)
- CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer weakness
References
- https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 Patch, Third Party Advisory
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/ Exploit, Third Party Advisory
- https://github.com/linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 Patch, Third Party Advisory
- https://labs.f-secure.com/advisories/microchip-at91bootstrap/ Exploit, Third Party Advisory