Intel E7-4850 AT80615007449AA User Manual

30

Intel

®

 Xeon

®

 Processor E7-8800/4800/2800 Product Families

September 2012

Specification Update

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 

for affected releases.

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 

for affected releases.