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AUSCERT External Security Bulletin Redistribution
Intel Processor Advisory
9 June 2021
AusCERT Security Bulletin Summary
Product: Intel Processor
Operating System: Linux variants
Impact/Access: Access Confidential Data -- Existing Account
CVE Names: CVE-2020-24512 CVE-2020-24511
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Intel ID: INTEL-SA-00464
Advisory Category: Firmware
Impact of vulnerability : Information Disclosure
Severity rating : MEDIUM
Original release: 06/08/2021
Last revised: 06/08/2021
Potential security vulnerabilities in some Intel Processors may allow
information disclosure. Intel is releasing firmware updates to mitigate these
Description: Improper isolation of shared resources in some Intel(R) Processors
may allow an authenticated user to potentially enable information disclosure
via local access.
CVSS Base Score: 5.6 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Description: Observable timing discrepancy in some Intel(R) Processors may
allow an authenticated user to potentially enable information disclosure via
CVSS Base Score: 2.8 Low
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
A list of impacted products can be found here .
Intel recommends that users of affected Intel Processors update to the latest
version firmware provided by the system manufacturer that addresses these
Intel has released microcode updates for the affected Intel Processors that are
currently supported on the public github repository. Please see details below
on access to the microcode:
GitHub*: Public Github: https://github.com/intel/
Intel would like to thank Travis Downs for reporting the issue CVE-2020-24512 .
Intel would like to thank Joseph Nuzman for reporting the issue CVE-2020-24511
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 Date Description
1.0 06/08/2021 Initial Release
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