The latest security information on Intel® products.
SGX Update
| Intel ID: | INTEL-SA-00076 |
|---|---|
| Product family: | Intel Server Systems, NUC, and Compute Stick |
| Impact of vulnerability: | Elevation of Privilege |
| Severity rating: | Critical |
| Original release: | Jul 25, 2017 |
| Last revised: | Jul 25, 2017 |
Summary:
Intel has released updates that improve the security of Intel® Software Guard Extensions (Intel® SGX).
Description:
Intel has released updates that improve the security of Intel® Software Guard Extensions (Intel® SGX). The improvement applies to 6th and 7th Generation Intel® Core™ Processor Families, Intel® Xeon® E3-1500M v5 and v6 Processor Families, and Intel® Xeon® E3-1200 v5 and v6 Processor Families.
CVSS Rating: Critical (9.0 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H)
Affected products:
Client Systems:
| Model name | Updated BIOS version | Update URL |
|---|---|---|
NUC7i3BNK (KBL) NUC7i5BNK NUC7i7BNH |
BN0047 | https://downloadcenter.intel.com/download/26889/NUCs-BIOS-Update-BNKBL357-86A- |
| STK2MV64CC (SKL) | CCV0051 | https://downloadcenter.intel.com/download/26812/Compute-Stick-BIOS-Update-CCSKLm5v-86A- |
| STK2M3W64CC (SKL) | CC0051 | https://downloadcenter.intel.com/download/26835/Compute-Stick-BIOS-Update-CCSKLm30-86A- |
| NUC6i7KYK (SKL) | KY0048 | https://downloadcenter.intel.com/download/26842/NUCs-BIOS-Update-KYSKLi70-86A- |
NUC6i3SYK (SKL) NUC6i5SYK |
SY0061 | https://downloadcenter.intel.com/download/26841/NUCs-BIOS-Update-SYSKLi35-86A- |
Server Systems:
Recommendations:
This update improves the security of Intel® Software Guard Extensions (Intel® SGX) and is strongly recommended.
While this firmware update prevents exploitation of the issue on systems running SGX, Intel also provides an SGX Attestation service to allow service providers to know whether clients have the latest security updates. Intel plans to update the SGX Attestation Service response on November 14, 2017. On platforms that have not installed the update, SGX applications using the SGX Attestation Service will begin to receive “out of date” responses from the SGX Attestation Service. Applications using SGX may or may not take action based on this information.
If SGX Attestation is used, it may be necessary for applications using SGX to re-provision the platform with an updated SGX platform attestation key after this update is installed. This updated attestation key allows the platform to demonstrate that it is up to date.
Acknowledgements:
This issue was discovered by Intel.
CVE Name: CVE-2017-5691
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