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AUSCERT External Security Bulletin Redistribution
ESB-2021.2020
Intel Thunderbolt Controller Advisory
9 June 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Intel Thunderbolt controllers
Publisher: Intel
Operating System: Windows
Impact/Access: Denial of Service -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12296 CVE-2020-12295 CVE-2020-12294
CVE-2020-12293 CVE-2020-12292 CVE-2020-12291
CVE-2020-12290 CVE-2020-12289 CVE-2020-12288
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00401.html
- --------------------------BEGIN INCLUDED TEXT--------------------
Intel ID: INTEL-SA-00401
Advisory Category: Firmware
Impact of vulnerability : Denial of Service
Severity rating : HIGH
Original release: 06/08/2021
Last revised: 06/08/2021
Summary:
Potential security vulnerabilities in some Intel Thunderbolt controllers may
allow denial of service. Intel is releasing firmware updates to mitigate these
potential vulnerabilities.
Vulnerability Details:
CVEID: CVE-2020-12293
Description: Improper control of a resource through its lifetime in some Intel
(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially
enable denial of service via local access.
CVSS Base Score: 7.3 High
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CVEID: CVE-2020-12294
Description: Insufficient control flow management in some Intel(R) Thunderbolt
(TM) controllers may allow an authenticated user to potentially enable denial
of service via local access.
CVSS Base Score: 7.3 High
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CVEID: CVE-2020-12295
Description: Improper input validation in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 7.3 High
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CVEID: CVE-2020-12296
Description: Uncontrolled resource consumption in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 7.3 High
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CVEID: CVE-2020-12291
Description: Uncontrolled resource consumption in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVEID: CVE-2020-12292
Description: Improper conditions check in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVEID: CVE-2020-12290
Description: Improper access control in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVEID: CVE-2020-12288
Description: Protection mechanism failure in some Intel(R) Thunderbolt(TM)
controllers may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 3.8 Low
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
CVEID: CVE-2020-12289
Description: Out-of-bounds write in some Intel(R) Thunderbolt(TM) controllers
may allow an authenticated user to potentially enable denial of service via
local access.
CVSS Base Score: 3.8 Low
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
Affected Products:
+------------------------------+------------+
|Thunderbolt 3, 4 Retimer and |Before |
|USB Retimer |Version |
+------------------------------+------------+
|Intel DSL5520 |All |
+------------------------------+------------+
|Intel DSL5320 |All |
+------------------------------+------------+
|Intel DSL6340 |All |
+------------------------------+------------+
|Intel DSL6540 |All |
+------------------------------+------------+
|Intel JHL6540 |46 |
+------------------------------+------------+
|Intel JHL6340 |46 |
+------------------------------+------------+
|Intel JHL6240 |21 |
+------------------------------+------------+
|Intel JHL7540 |60 |
+------------------------------+------------+
|Intel JHL7340 |60 |
+------------------------------+------------+
|Intel JHL7440 |60 |
+------------------------------+------------+
|Intel JHL8040R |41 |
+------------------------------+------------+
|Intel JHL8010R |41 |
+------------------------------+------------+
|Intel JHL7040 |22 |
+------------------------------+------------+
Recommendations:
Intel recommends that users of Intel Thunderbolt controllers update to the
latest version provided by the system manufacturer that addresses these issues.
Intel recommends that users of Intel Thunderbolt 3 Controller for the Intel
NUC8ixBE and NUC7ixBN update to 46 or later. Updates are available for download
at this location: Intel-NUC8ixBE-and-NUC7ixBN
Intel recommends that users of Intel Thunderbolt 3 Controller for the Intel
NUC10ixFN update to 60 or later. Updates are available for download at this
location: Intel-NUC10ixFN
Intel recommends that users of Intel Thunderbolt 3 Controller for the Intel
NUC8vPN update to 60 or later. Updates are available for download at this
location: NUC8vPN
Intel recommends that users of Intel Thunderbolt 3 Controller for the Intel
NUC9QN update to 60 or later. Updates are available for download at this
location: NUC9QN
Intel recommends that users of Intel Thunderbolt 3 for the Intel NUC 9 Extreme
Laptop Kits update to 60 or later. Updates are available for download at this
location: Intel NUC 9 Extreme Laptop Kits
Intel will not be releasing mitigation for CVEID: CVE-2020-12289 and
CVE-2020-12288 for Intel Thunderbolt 3 controllers JHL7540, JHL7340, JHL7440,
DSL6340, DSL6540, JHL6240, JHL6540 and JHL6340. To recover from these issues a
device power cycle is needed.
Intel has issued Product Discontinuation notices for the Intel DSL5520 &
DSL5320 Thunderbolt 2 Controllers and Intel DSL6340 & DSL6540 Thunderbolt 3
Controllers and Intel recommends that users discontinue use at their earliest
convenience.
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.
Revision History
Revision Date Description
1.0 06/08/2021 Initial Release
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