Platform firmware included insecure handling of certain UEFI variables
This update improves the security of the firmware and the ability to enable secure configuration.
Insecure handling of UEFI variables in Intel® Xeon® Scalable processors, Intel® Xeon® Processor E5 v4 Family, Intel® Xeon® Processor E5 v3 Family system firmware potentially allows a local attacker to disable security features of the platform. Intel reference firmware implemented setup options to enable/disable security features. These options are used in the validation environments to relax security when running tests in a lab environment. If used by malware on a production system, these features may result in elevation of privilege by disabling protection of the system configuration or denial of service.
• Medium (6.1) CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:H
Intel® Xeon® Scalable processors, Intel® Xeon® Processor E5 v4 Family, Intel® Xeon® Processor E5 v3 Family
A reference fix was provided in the pre-production Intel® Xeon® Scalable processors Refresh releases and Intel recommends that end-users contact their system manufacturers for updated system firmware.
Legal Notices and Disclaimers
Intel provides these materials as-is, with no express or implied warranties.
All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.
Intel, processors, chipsets, and desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request.
Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No computer system can be absolutely secure. Check with your system manufacturer or retailer or learn more at https://intel.com.
Some results have been estimated or simulated using internal Intel analysis or architecture simulation or modeling, and provided to you for informational purposes. Any differences in your system hardware, software or configuration may affect your actual performance.
Intel and the Intel logo are trademarks of Intel Corporation in the United States and other countries.
*Other names and brands may be claimed as the property of others.
Copyright © Intel Corporation 2018
Report a Vulnerability
If you have information about a security issue or vulnerability with an Intel branded product or technology, please send an e-mail to firstname.lastname@example.org. Encrypt sensitive information using our PGP public key.
Please provide as much information as possible, including:
- The products and versions affected
- Detailed description of the vulnerability
- Information on known exploits
A member of the Intel Product Security Team will review your e-mail and contact you to collaborate on resolving the issue. For more information on how Intel works to resolve security issues, see:
For issues related to Intel's external web presence (Intel.com and related subdomains), please contact Intel's External Security Research team.
For issues related to Intel managed open source projects, please visit http://www.01.org/security