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AUSCERT External Security Bulletin Redistribution
ESB-2020.3988
Intel PMC Advisory
11 November 2020
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AusCERT Security Bulletin Summary
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Product: Intel Power Management Controller
Publisher: Intel
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-0559
Original Bulletin:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00360.html
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Intel ID: INTEL-SA-00360
Advisory Category: Firmware
Impact of vulnerability : Escalation of Privilege
Severity rating : MEDIUM
Original release: 11/10/2020
Last revised: 11/10/2020
Summary:
A potential security vulnerability in the Power Management Controller (PMC) for
some Intel Processors may allow escalation of privilege. Intel is releasing
firmware updates to mitigate this potential vulnerability.
Vulnerability Details:
CVEID: CVE-2020-0559
Description: Improper access control in the PMC 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
Affected Products:
Intel Pentium Processor J Series
Intel Pentium Processor N Series
Intel Celeron Processor J Series
Intel Celeron Processor N Series
Intel Atom Processor A Series
Intel Atom Processor E3900 Series
Recommendations:
Intel recommends that users of affected Intel Processors update to the latest
BIOS firmware version provided by the system manufacturer that addresses this
issue.
Acknowledgements:
This issue was found internally by Intel employees.
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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