Intel® Thunderbolt™ DCH Drivers for Windows* Advisory

Summary:

Potential security vulnerabilities in some Intel® Thunderbolt™ DCH drivers for Windows* may allow escalation of privilege or information disclosure.** **Intel is releasing updates to mitigate these potential vulnerabilities.

Vulnerability Details:

CVEID: CVE-2020-12325

Description: Improper buffer restrictions in some Intel® Thunderbolt™ DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable escalation of privilege via local access.

CVSS Base Score: 8.4 High

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

CVEID: CVE-2020-12324

Description: Protection mechanism failure in some Intel® Thunderbolt™ DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable escalation of privilege via local access.

CVSS Base Score: 7.8 High

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

CVEID: CVE-2020-12328

Description: Protection mechanism failure in some Intel® Thunderbolt™ DCH drivers for Windows* before version 72 may allow a privileged user to potentially enable information disclosure via local access.

CVSS Base Score: 6.0 Medium

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

CVEID: CVE-2020-12327

Description: Insecure default variable initialization in some Intel® Thunderbolt™ DCH drivers for Windows* before version 72 may allow a privileged user to potentially enable information disclosure via local access.

CVSS Base Score: 4.7 Medium

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

CVEID: CVE-2020-12326

Description: Improper initialization in some Intel® Thunderbolt™ DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable information disclosure via local access.

CVSS Base Score: 4.7 Medium

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

Affected Products:

Intel® Thunderbolt™ 3 and 4 DCH drivers for Windows* before version 72.

Recommendations:

Intel recommends that users of Intel® Thunderbolt™ 3 and 4 DCH drivers for Windows* update to the latest version provided by the system manufacturer that addresses these issues.__

Acknowledgements:

These issues were found internally by Intel.****

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.