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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1996 2021.1 IPU - Intel Atom Processor Advisory 9 June 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Intel Atom Processor Publisher: Intel Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-24513 Original Bulletin: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00465.html - --------------------------BEGIN INCLUDED TEXT-------------------- Intel ID: INTEL-SA-00465 Advisory Category: Firmware Impact of vulnerability : Information Disclosure Severity rating : MEDIUM Original release: 06/08/2021 Last revised: 06/08/2021 Summary: A potential security vulnerability in some Intel Atom Processors may allow information disclosure. Intel is releasing firmware updates to mitigate this potential vulnerability. Vulnerability Details: CVEID: CVE-2020-24513 Description: Domain-bypass transient execution vulnerability in some Intel Atom (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 Affected Products: A list of impacted products can be found here . Recommendations: Intel recommends that users of Intel Processors update to the latest version provided by the system manufacturer that addresses these issues. To address this issue, an SGX TCB recovery is planned for Q2 2021. Customers will require the software update to get successful attestation responses. For customers using the Intel Attestation Service (IAS), the IAS Development Environment (DEV) will enforce the software updates beginning June 15, 2021 and the IAS Production Environment (LIV) will enforce the updates beginning July 13, 2021. For customers that are not using IAS, but instead are constructing their own attestation infrastructure using the Intel SGX Provisioning Certificate Service (PCS), updated Endorsements/Reference Values (i.e., PCK Certificates and verification collateral) will be available June 8, 2021. These customers decide when to enforce the software update, as part of their Appraisal Policies. Refer to Intel SGX Attestation Technical Details for more information on the SGX TCB recovery process. Further TCB Recovery Guidance for developers is available. Acknowledgements: The following issue was found internally by Intel. 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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