Execute-Only Access Bypass in NXP Kinetis Microcontrollers
CVE-2019-14239

6.6MEDIUM

Key Information:

Vendor

Nxp

Status
Kinetis Kv1x Firmware
Vendor
CVE Published:
24 September 2019

What is CVE-2019-14239?

This vulnerability affects NXP Kinetis KV1x, KV3x, and K8x microcontrollers, where the software IP protection method, Flash Access Controls (FAC), can be compromised. By exploiting a load instruction within the execute-only region, attackers can gain unauthorized access to protected code, exposing sensitive information stored in the CPU registers. This flaw highlights significant security implications for embedded systems utilizing these microcontrollers, necessitating immediate attention from developers and users to safeguard against potential breaches.

References

https://www.usenix.org/system/files/woot19-paper_schink.pdf
x_refsource_MISC
https://www.usenix.org/conference/woot19/presentation/schink
x_refsource_MISC

CVSS V3.1

Score:
6.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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