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AUSCERT External Security Bulletin Redistribution
ESB-2020.3949
2020.2 IPU - BIOS Advisory
11 November 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Intel BIOS firmware
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-0593 CVE-2020-0592 CVE-2020-0591
CVE-2020-0590 CVE-2020-0588 CVE-2020-0587
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00358.html
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2020.2 IPU - BIOS Advisory
Intel ID: INTEL-SA-00358
Advisory Category: Firmware
Impact of vulnerability : Escalation of Privilege, Denial of Service
Severity rating : HIGH
Original release: 11/10/2020
Last revised: 11/10/2020
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 this potential vulnerability.
Vulnerability Details:
CVEID: CVE-2020-0590
Description: Improper input validation in BIOS firmware for some Intel(R)
Processors may allow an authenticated user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 7.7 High
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
CVEID: CVE-2020-0587
Description: Improper conditions check in BIOS firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 6.7 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L
CVEID: CVE-2020-0591
Description: Improper buffer restrictions in BIOS firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 6.7 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVEID: CVE-2020-0593
Description: Improper buffer restrictions in BIOS firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege 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:H/I:N/A:L
CVEID: CVE-2020-0588
Description: Improper conditions check in BIOS firmware for some Intel(R)
Processors may allow a privileged user to potentially enable escalation of
privilege via local access.
CVSS Base Score: 3.8 Low
CVSS Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
CVEID: CVE-2020-0592
Description: Out of bounds write in BIOS firmware for some Intel(R) Processors
may allow an authenticated user to potentially enable escalation of privilege
and/or denial of service via local access.
CVSS Base Score: 3.0 Low
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L
Affected Products:
2nd Generation Intel Xeon Scalable and Intel Xeon Scalable Processors
o CVE-2020-0590
o CVE-2020-0591
o CVE-2020-0592
o CVE-2020-0593
o CVE-2020-0587
o CVE-2020-0588
Intel Xeon Processor D Family
o CVE-2020-0591
o CVE-2020-0592
10th Generation Intel Core processors, 9th Generation Intel Core processors,
8th Generation Intel Core processors, 7th Generation Intel Core processors, 6th
Generation Intel Core processors and
Intel Core Processors with Intel Hybrid Technology
o CVE-2020-0593
Intel Xeon Processor E7 v4 Family and Intel Xeon Processor E7 v2 Family
o CVE-2020-0592
Intel Core X-series Processors and Intel Xeon Processor W Family
o CVE-2020-0587
o CVE-2020-0591
o CVE-2020-0592
o CVE-2020-0593
Intel Xeon Processor D Family, Intel Xeon W Processor and Intel Core X-series
Processors
o CVE-2020-0591
o CVE-2020-0592
o CVE-2020-0593
Recommendations:
Intel recommends that users of the affected products update to the latest BIOS
firmware provided by the system manufacturer that addresses these issues.
Acknowledgements:
These issues were found internally by Intel employees. Intel would like to
thank, Nagaraju N Kodalapura and Hareesh Khattri for CVE-2020-0590, Jorge E
Gonzalez Diaz for CVE-2020-0588, Nicholas Armour for CVE-2020-0587, and Brent
Holtsclaw for CVE-2020-0591 and CVE-2020-0591.
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 11/10/2020 Initial Release
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