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AUSCERT External Security Bulletin Redistribution
ESB-2021.3731
Intel NUC Firmware Advisory
10 November 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Intel NUC
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-33086
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00567.html
- --------------------------BEGIN INCLUDED TEXT--------------------
Intel ID: INTEL-SA-00567
Advisory Category: Firmware
Impact of vulnerability : Denial of Service
Severity rating : MEDIUM
Original release: 11/09/2021
Last revised: 11/09/2021
Summary:
A potential security vulnerability in some Intel NUCs may allow denial of
service. Intel is releasing firmware updates to mitigate this potential
vulnerability.
Vulnerability Details:
CVEID: CVE-2021-33086
Description: Out-of-bounds write in firmware for some Intel(R) NUCs may allow
an authenticated user to potentially enable denial of service via local access.
CVSS Base Score: 6.3 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected Products:
+---------------------------------------------------------------------------+--------------------+
|Product |BIOS Download link |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC M15 Laptop Kit: LAPBC510, LAPBC710 |BCTGL357.0064 |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 11 Compute Element: CM11EBC4W, CM11EBi38W, CM11EBi58W, |EBTGL357.0056 |
|CM11EBi716W | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 11 Performance kit: NUC11PAHi3, NUC11PAHi5, NUC11PAHi7, | |
|NUC11PAKi3, NUC11PAKi5, NUC11PAKi7 |PATGL357.0040 |
| | |
|Intel NUC 11 Performance Mini PC - NUC11PAQi50WA, NUC11PAQi70QA | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 11 Pro Board: NUC11TNBi3, NUC11TNBi5, NUC11TNBi7 | |
| | |
|Intel NUC 11 Pro Kit: NUC11TNHi3, NUC11TNHi30L, NUC11TNHi30P, NUC11TNHi5, |TNTGL357.0057 |
|NUC11TNHi50L, NUC11TNHi50W, NUC11TNHi7, NUC11TNHi70L, NUC11TNHi70Q, | |
|NUC11TNKi3, NUC11TNKi5, NUC11TNKi7 | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 11 Enthusiast Kit - NUC11PHKi7C | |
| |PHTGL579.0062 |
|Intel NUC 11 Enthusiast Mini PC - NUC11PHKi7CAA | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 10 Performance kit: NUC10i3FNH, NUC10i3FNHF, NUC10i3FNK, | |
|NUC10i5FNH, NUC10i5FNHF, NUC10i5FNHJ, NUC10i5FNK, NUC10i5FNKP, NUC10i7FNH, | |
|NUC10i7FNHC, NUC10i7FNK, NUC10i7FNKP, NUC10i3FNHFA, NUC10i3FNHJA, |FNCML.0052 |
|NUC10i5FNHCA, NUC10i5FNHJA, NUC10i5FNKPA, NUC10i7FNHAA, NUC10i7FNHJA, | |
|NUC10i7FNKPA | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 9 Pro Compute Element: NUC9V7QNB, NUC9VXQNB | |
| |QNCFLX70.0063 |
|Intel NUC 9 Pro Kit: NUC9V7QNX, NUC9VXQNX | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Business, a Mini PC with Windows 10 - NUC8i7HNKQC | |
| | |
|Intel NUC 8 Enthusiast, a Mini PC with Windows 10: NUC8i7HVKVA, |HNKBLi70.86A.0067 |
|NUC8i7HVKVAW | |
| | |
|Intel NUC Kit: NUC8i7HNK, NUC8i7HVK | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Enthusiast, a Mini PC with Windows 10: NUC8i7BEHGA, NUC8i7BEKQA| |
| | |
|Intel NUC 8 Home - a Mini PC with Windows 10: NUC8i3BEHFA, NUC8i5BEHFA, | |
|NUC8i5BEKPA |BECFL357.86A.0088 |
| | |
|Intel NUC Kit: NUC8i3BEH, NUC8i3BEHS, NUC8i3BEK, NUC8i5BEH, NUC8i5BEHS, | |
|NUC8i5BEK, NUC8i7BEH, NUC8i7BEK | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Home, a Mini PC with Windows 10: NUC8i3CYSM, NUC8i3CYSN |CYCNLi35.86A.0049 |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Rugged Kit NUC8CCHKR | |
| |CHAPLCEL.0054 |
|Intel NUC Board NUC8CCHB | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Compute Element: CM8CCB, CM8i3CB, CM8i5CB, CM8i7CB, CM8PCB |CBWHL.0094 |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Pro Board NUC8i3PNB | |
| |PNWHL357.0042 |
|Intel NUC 8 Pro Kit: NUC8i3PNH, NUC8i3PNK | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 8 Mainstream-G kit: NUC8i5INH, NUC8i7INH | |
| |INWHL357.0041 |
|Intel NUC 8 Mainstream-G mini PC: NUC8i5INH, NUC8i7INH | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 7 Essential, a Mini PC with Windows 10 - NUC7CJYSAL | |
| |JYGLKCPX.86A.0062 |
|Intel NUC Kit: NUC7CJYH, NUC7PJYH | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 7 Business, a Mini PC with Windows 10 Pro - NUC7i3DNHNC | |
| | |
|Intel NUC 7 Business, a Mini PC with Windows 10 Pro - NUC7i3DNKTC | |
| |DNKBLi30.86A.0073 |
|Intel NUC Board NUC7i3DNBE | |
| | |
|Intel NUC Kit NUC7i3DNHE, NUC7i3DNKE | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC 7 Business, a Mini PC with Windows 10 Pro - NUC7i5DNKPC, |DNKBLi5v.86A.0073 |
|NUC7i5DNBE, NUC7i5DNHE, NUC7i5DNKE | |
+---------------------------------------------------------------------------+--------------------+
|Intel NUC Kit: NUC6CAYH, NUC6CAYS |AYAPLCEL.86A.0069 |
+---------------------------------------------------------------------------+--------------------+
Recommendations:
Intel recommends updating the Intel NUCs listed above to the latest BIOS
version (see provided table).
Acknowledgements:
Intel would like to thank Denis Straghkov for reporting this issue.
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 11/09/2021 Initial Release
- --------------------------END INCLUDED TEXT--------------------
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