Intel® Thunderbolt™ Controller Advisory

Summary:

A potential security vulnerability in some Intel® Thunderbolt™ Controllers may allow denial of service. Intel is releasing firmware updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2023-28396

Description: Improper access control in firmware for some Intel® Thunderbol™ Controllers versions before 41 may allow a privileged user to enable denial of service via local access.

CVSS Base Score: 6.1 Medium

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

Affected Products:

Intel® JHL8440 Thunderbolt™ 4 Controller firmware versions before 41.

Recommendation:

Intel recommends that users of Intel® Thunderbolt™ Controllers update to the latest version provided by the system manufacturer that addresses these issues.

Acknowledgements:

This issue was found internally by Intel employees.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.