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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2375 Intel BSSA DFT Advisory 14 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Intel Processors Publisher: Intel Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-0144 Original Bulletin: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00525.html - --------------------------BEGIN INCLUDED TEXT-------------------- Intel ID: INTEL-SA-00525 Advisory Category: Firmware Impact of vulnerability : Escalation of Privilege Severity rating : HIGH Original release: 07/13/2021 Last revised: 07/13/2021 Summary: A potential security vulnerability in the customer build time configuration for the Intel BIOS Shared SW Architecture (BSSA) Design for Test (DFT) feature may allow escalation of privilege. Intel is releasing detailed guidance to address this potential vulnerability. Vulnerability Details: CVEID: CVE-2021-0144 Description: Insecure default variable initialization for the Intel BSSA DFT feature may allow a privileged user to potentially enable an 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 Affected Products: o 2nd Generation Intel Xeon Scalable Processors o Intel Xeon Scalable Processors o Intel Core X-series Processors o Intel Xeon Processor W Family o Intel Xeon Processor D Family o Intel Xeon Processor E5 v4 Family o Intel Xeon Processor E5 v3 Family Recommendation: Intel recommends that users of the potentially affected products update to the latest BIOS firmware version provided by the system manufacturer that addresses these issues. Acknowledgements: Intel would like to thank Nvidia for reporting this issue. 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 07/13/2021 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYO4qKuNLKJtyKPYoAQjuJQ/8C0fclzdHawjuL4MonLEJPKpbx/f2EipA 7YRgYKBUGLb8UZuK6JHoayG724mc69dn1yXMGQ7kGwNFoZuL4OHeaxnoT3HYqSm+ WSNIkwFBPmmK/SbzkOglwlbfOnNrFsmSNBgbW9dwAB/v8Gd8lQPNqK8SHAIviv1g g4sfwIgt6H+UEICZwOzkJ6iPOrb0OValdK70zAhNSjJju9uSvXYz6BBZOdSY13Ue Bq2VhDGnDSOq795U9E7I0k7HD0jW9/Z7jUwsaOZzWtXNMNr/G1LGuY0CKDxmh9+J +4JydbZlQ4vhxDZYLydF84Osn4qWenRRGrAh2jy5srj0lfNLh9KHprECAcg8gh63 Kgv7xZTRxQMrfOiOptt6DIYnIS1hegmiSObNnqHTZGR9qfL7+1Yt688CbQvxIp5o qtq5qdV7h3iADVvDw+wQzjztnd/DgK8SFjMKQXoNlBpUvobtjuEliPveGmbFzFAz sV/waHLI6CkU/0yZV2+u8fTZFpPDlinZZIXbjmMC+9VmqWBueyaDmKnpAaTAfki4 b/LRYqmCtM8ERDltDtoY291M7g1pIUlNcthHDwArlOwt3RVj/m65fCPc5oS5HrBk uByGrN11O7viQ6y8lOUrUioxTZA7M2reR5xQpIA3krrSOjLHQgh1P8FwXKzg39BH wNjN5FCBf/Q= =IoLS -----END PGP SIGNATURE-----