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AUSCERT External Security Bulletin Redistribution
ESB-2021.1995
2021.1 IPU - BIOS Advisory
9 June 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Intel Xeon Processor
Intel Core Processor
Publisher: Intel
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-0095 CVE-2020-24486 CVE-2020-12360
CVE-2020-12359 CVE-2020-12358 CVE-2020-12357
CVE-2020-8700 CVE-2020-8670
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00463.html
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Intel ID: INTEL-SA-00463
Advisory Category: Firmware
Impact of vulnerability : Escalation of Privilege, Denial of Service
Severity rating : HIGH
Original release: 06/08/2021
Last revised: 06/08/2021
Summary:
Potential security vulnerabilities in the BIOS firmware for some Intel
Processors may allow escalation of privilege or denial of service. Intel is
releasing firmware updates to mitigate these potential vulnerabilities.
Vulnerability Details:
CVEID: CVE-2020-12357
Description: Improper initialization in the firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 7.5 High
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVEID: CVE-2020-8670
Description: Race condition in the firmware for some Intel(R) Processors may
allow a privileged user to potentially enable escalation of privilege via local
access.
CVSS Base Score: 7.5 High
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVEID: CVE-2020-8700
Description: Improper input validation in the firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 7.5 High
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVEID: CVE-2020-12359
Description: Insufficient control flow management in the firmware for some
Intel(R) Processors may allow an unauthenticated user to potentially enable
escalation of privilege via physical access.
CVSS Base Score: 7.1 High
CVSS Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVEID: CVE-2020-12358
Description: Out of bounds write in the firmware for some Intel(R) Processors
may allow a privileged user to potentially enable denial of service via local
access.
CVSS Base Score: 6.7 Medium
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H
CVEID: CVE-2021-0095
Description: Improper initialization in the firmware for some Intel(R)
Processors may allow a privileged user to potentially enable a denial of
service 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:N/I:H/A:H
CVEID: CVE-2020-12360
Description: Out of bounds read in the firmware for some Intel(R) Processors
may allow an authenticated user to potentially enable escalation of privilege
via local access.
CVSS Base Score: 5.6 Medium
CVSS Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVEID: CVE-2020-24486
Description: Improper input validation in the firmware for some Intel(R)
Processors may allow an authenticated user to potentially enable denial of
service via local access.
CVSS Base Score: 5.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
. 2nd Generation Intel Xeon Scalable Processors
. Intel Xeon Scalable Processors
. Intel Xeon Processor D Family
. Intel Xeon Processor E Family
. Intel Xeon Processor E7 v4 Family
. Intel Xeon Processor E3 v6 Family
. Intel Xeon Processor E3 v5 Family
. Intel Xeon Processor E5 v4 Family
. Intel Xeon Processor E5 v3 Family
. Intel Xeon Processor W Family
. Intel Core Processors with Intel Hybrid Technology
. 11th Generation Intel Core Processors
. 10th Generation Intel Core Processors
. 8th Generation Intel Core Processors
. 7th Generation Intel Core Processors
. 6th Generation Intel Core processors
. Intel Core X-series Processors
Recommendations:
Intel recommends that users of the affected products update to the latest
firmware version provided by the system manufacturer that addresses these
issues.
Acknowledgements:
Intel would like to thank NVIDIA Product Security Team (CVE-2020-24486) and
Intel employee Hareesh Khattri (CVE-2020-12357) for their reports.
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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