Vulnerability in Linux4sam At91bootstrap
CVE-2020-11683
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.
EPSS: 0.005 (40.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux4sam At91bootstrap
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-11683?
- CVE-2020-11683 is a medium-severity vulnerability in Linux4sam At91bootstrap, classified under Observable Discrepancy. CVSS score: 6.8/10. Published 2020-09-14.
- How severe is CVE-2020-11683?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2020-11683 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.