9.1crit
CVE-2020-11684
AT91bootstrap before 3.9.2 does not properly wipe encryption and authentication keys from memory before passing control to a less privilege…
Published 6 y ago · modified 4 mo ago · JSON
CVSS
9.1
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
1.1%
percentile 65%
Public exploits
0
none known
Summary
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).
Exploit prediction (EPSS)
1.08% probability of exploitation in the next 30 days, higher than 65% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
Classification
- Weakness
- CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer
References
- github.com /linux4sam/at91bootstrap/commit/45419497309ffbf27c17ea7938499aca99168927 · x_refsource_MISC, x_transferred
- labs.f-secure.com /advisories/microchip-at91bootstrap/ · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2020-11684
- NVD: CVE-2020-11684
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