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30 Intel

Xeon

Processor E7-8800/4800/2800 Product Families

September 2012 Specification Update

Intel

Xeon

Processor E7-8800/

4800/2800 Product Families SINIT

ACM Errata

AS1. TXT.ERRORCODE TPM Command Return Code And Launch Control

Policy List Index And Minor Code Are Not Reported Correctly.

Problem: On affected SINIT ACM releases, the TXT.ERRORCODE register TPM command return

code (bits 24:16), Launch Control Policy List Index (bits 24:22) and Launch Control

Policy Minor Code (bits 21:16) are not reported correctly.

Implication: Software depending upon TXT.ERRORCODE error reporting for the TPM command

return code, Launch Control Policy List Index, or Launch Control Policy Minor Code may

not behave as expected.

Workaround: None.

Status: See Intel

Xeon

Processor E7-8800/4800/2800 Product Families SINIT ACM Errata

for affected releases.

AS2. SINIT Buffer Overflow Vulnerability

Problem: SINIT Authenticated Code Module (ACM) 1.0 is susceptible to a buffer overflow issue.

Implication: When Intel® Trusted Execution Technology measured launch is invoked using SINIT

Authenticated Code Module 1.0, the platform is susceptible to an OS kernel-level

exploit which may compromise certain SINIT ACM functionality.

Workaround: It is possible for a BIOS update and an updated SINIT ACM 1.1 to be used as a

workaround for this erratum. Previous SINIT ACM releases will no longer function with

the BIOS update.

Status: See Intel

Xeon

Processor E7-8800/4800/2800 Product Families SINIT ACM Errata

for affected releases.

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Intel AT80615007245AA Scheda Tecnica Pagina 30