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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3964.2 2020.2 IPU - Intel RAPL Interface Advisory 12 January 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Intel Running Average Power Limit Interface Publisher: Intel Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-8695 CVE-2020-8694 Original Bulletin: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00389.html Revision History: January 12 2021: Vendor updated Recommendations section November 11 2020: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Intel ID: INTEL-SA-00389 Advisory Category: Firmware Impact of vulnerability: Information Disclosure Severity rating: MEDIUM Original release: 11/10/2020 Last revised: 01/11/2021 Summary: Potential security vulnerabilities in the Intel Running Average Power Limit (RAPL) Interface may allow information disclosure. Intel is releasing microcode and Linux driver updates to mitigate these potential vulnerabilities. Vulnerability Details: CVEID: CVE-2020-8694 Description: Insufficient access control in the Linux kernel driver for 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 CVEID: CVE-2020-8695 Description: Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access. CVSS Base Score: 5.3 Medium CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N Affected Products: +----------------------------------------+--------------+----------+ |Product Collection |Vertical |CPUID | | |Segment | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Mobile |806E9 | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |806EC | |Family | | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Mobile |906EA | |Family | | | +----------------------------------------+--------------+----------+ |9th Generation Intel Core Processor |Mobile |906EC | |Family | | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Desktop |906EA | |Family | | | +----------------------------------------+--------------+----------+ |9th Generation Intel Core Processor |Desktop |906EC | |Family | | | +----------------------------------------+--------------+----------+ |Intel Xeon Processor E Family |Server |906EA | | |Workstation | | | |AMT Server | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Mobile |806EA | |Family | | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Desktop |906EB | |Family Intel Pentium Gold Processor | | | |Series Intel Celeron Processor G Series | | | +----------------------------------------+--------------+----------+ |Intel Xeon Processor E Family |Server |906EA | | |Workstation | | | |AMT Server | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Desktop |906EA | |Family | | | +----------------------------------------+--------------+----------+ |9th Generation Intel Core Processor |Desktop |906ED | |Family | | | +----------------------------------------+--------------+----------+ |9th Generation Intel Core Processor |Desktop |906ED | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |A0660 | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |A0661 | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |806EC | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Desktop |A0653 | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |A0655 | |Family | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |A0652 | |Family | | | +----------------------------------------+--------------+----------+ |Intel Pentium Processor Silver Series |Desktop Mobile|706A1 | |Intel Celeron Processor J Series Intel |Embedded | | |Celeron Processor N Series | | | +----------------------------------------+--------------+----------+ |Intel Pentium Processor Silver Series |Desktop Mobile|706A8 | |Intel Celeron Processor J Series Intel |Embedded | | |Celeron Processor N Series | | | +----------------------------------------+--------------+----------+ |10th Generation Intel Core Processor |Mobile |706E5 | |Family | | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Mobile |906E9 | |Family | | | +----------------------------------------+--------------+----------+ |7th Generation Intel Core Processor |Mobile |906E9 | |Family |Embedded | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processor |Mobile |806EA | |Family | | | +----------------------------------------+--------------+----------+ |7th Generation Intel Core Processor |Desktop |906E9 | |Family |Embedded | | +----------------------------------------+--------------+----------+ |7th Generation Intel Core Processor |Mobile |806E9 | |Family | | | +----------------------------------------+--------------+----------+ |7th Generation Intel Core |Mobile |806E9 | | | | | |Processor Family | | | +----------------------------------------+--------------+----------+ |Intel Core X-series Processors |Desktop |906E9 | +----------------------------------------+--------------+----------+ |Intel Xeon Processor E3 v6 Family |Server |906E9 | | |Workstation | | | |AMT Server | | +----------------------------------------+--------------+----------+ |7th Generation Intel Core Processor |Mobile |806E9 | |Family | | | +----------------------------------------+--------------+----------+ |6th Generation Intel Core Processor |Mobile |506E3 | |Family | | | +----------------------------------------+--------------+----------+ |6th Generation Intel Core Processor |Desktop |506E3 | |Family |Embedded | | +----------------------------------------+--------------+----------+ |6th Generation Intel Core Processors |Mobile |406E3 | +----------------------------------------+--------------+----------+ |6th Generation Intel Core Processor |Mobile |406E3 | |Family | | | +----------------------------------------+--------------+----------+ |Intel Xeon Processor E3 v5 Family |Server |506E3 | | |Workstation | | | |AMT Server | | +----------------------------------------+--------------+----------+ |6th Generation Intel Core Processor |Mobile |406E3 | |Family | | | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processors |Mobile |806EB | +----------------------------------------+--------------+----------+ |8th Generation Intel Core Processors |Mobile |806EC | +----------------------------------------+--------------+----------+ Recommendations: Intel recommends that users of affected Intel Processors update to the latest firmware version provided by the system manufacturer that addresses this issue. Intel recommends that users of affected Intel Processors install the updates provided by their software vendors. In Linux, for the change to be effective it will require a reboot. If a reboot is not possible, Intel recommends changing the permissions of the affected sysfs attributes so that only privileged users can access them. To address this issue, an SGX TCB recovery was performed in Q4 2020. Refer to Intel SGX Attestation Technical Details for more information on the SGX TCB recovery process. Acknowledgements: CVE-2020-8694 and CVE-2020-8695 were found externally, Intel would like to thank: Graz University of Technology: Moritz Lipp, Andreas Kogler, Daniel Gruss CISPA Helmholtz Center for Information Security: Michael Schwarz University of Birmingham: David Oswald. CVE-2020-8695 was found internally by Intel employees. Intel would like to thank Chen Liu, Terry Wang, Neer Roggel, Ben Gras, Monodeep Kar, Bilgiday Yuce. 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 1.1 01/11/2021 Updated Recommendations - --------------------------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. 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