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             AUSCERT External Security Bulletin Redistribution

                          Intel SGX SDK Advisory
                              13 October 2021


        AusCERT Security Bulletin Summary

Product:           Intel SGX SDK
Publisher:         Intel
Operating System:  Windows
                   Linux variants
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-0186  

Original Bulletin: 

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Intel ID:                 INTEL-SA-00548
Advisory Category:        Software
Impact of vulnerability:  Escalation of Privilege
Severity rating:          HIGH
Original release:         10/12/2021
Last revised:             10/12/2021


A potential security vulnerability in Intel Software Guard Extensions (SGX)
Software Development Kit (SDK)applications compiled for SGX2-enabled processors
may allow escalation of privilege. Intel is releasing software updates to
mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2021-0186

Description: Improper input validation in the Intel(R) SGX SDK applications
compiled for SGX2 enabled processors may allow a privileged user to potentially
escalation of privilege via local access.

CVSS Base Score: 8.2 High


Affected Products:

Intel SGX SDK for Windows v2.12 and earlier.

Intel SGX SDK for Linux v2.13 and earlier.

Intel Processors supporting SGX2:

Code Name                        Product Collection

Ice Lake Xeon-SP (HCC, XCC)      3rd Gen Intel Xeon Scalable processor family

Ice Lake                         10th Generation Intel Core Processor Family

Gemini Lake                      Intel Pentium Processor Silver Series, Intel Celeron
                                 Processor J Series, Intel Celeron Processor N Series


Intel recommends updating the Intel SGX SDK to the versions listed below.
Enclaves built with the new Intel SGX SDK version should increment the value of
their ISVSVN field.

Intel SGX SDK for Windows to version 2.13 or later: https://

Intel SGX SDK for Linux to version 2.14 or later: https://01.org/


Intel would like to thank Jinhua Cui, National University of Defense Technology
and National University of Singapore, Shweta Shinde, ETH Zurich , Zhijingcheng
Yu, National University of Singapore, and Prateek Saxena, National University
of Singapore 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      10/12/2021 Initial Release

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