CVE-2019-14239 — MEDIUM (6.6)

Vulnerability Description

On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC) (a software IP protection method for execute-only access) can be defeated by leveraging a load instruction inside the execute-only region to expose the protected code into a CPU register.

CVSS Score

6.6

MEDIUM

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Nxp	Kinetis Kv1X Firmware	-
Nxp	Kinetis Kv1X	-
Nxp	Kinetis Kv3X Firmware	-
Nxp	Kinetis Kv3X	-
Nxp	Kinetis K8X Firmware	-
Nxp	Kinetis K8X	-

Related Weaknesses (CWE)

CWE-287

References

https://www.usenix.org/conference/woot19/presentation/schinkExploitThird Party Advisory
https://www.usenix.org/system/files/woot19-paper_schink.pdfExploitMitigationThird Party Advisory
https://www.usenix.org/conference/woot19/presentation/schinkExploitThird Party Advisory
https://www.usenix.org/system/files/woot19-paper_schink.pdfExploitMitigationThird Party Advisory

FAQ

What is CVE-2019-14239?

CVE-2019-14239 is a vulnerability with a CVSS score of 6.6 (MEDIUM). On NXP Kinetis KV1x, Kinetis KV3x, and Kinetis K8x devices, Flash Access Controls (FAC) (a software IP protection method for execute-only access) can be defeated by leveraging a load instruction insid...

How severe is CVE-2019-14239?

CVE-2019-14239 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-14239?

Check the references section above for vendor advisories and patch information. Affected products include: Nxp Kinetis Kv1X Firmware, Nxp Kinetis Kv1X, Nxp Kinetis Kv3X Firmware, Nxp Kinetis Kv3X, Nxp Kinetis K8X Firmware.