Intel Processors with SGX Denial-of-Service Vulnerability

A denial-of-service vulnerability has been identified in some Intel processors with Intel Software Guard Extensions (SGX). The issue arises from improper access control in the EDECCSSA user leaf function, which may allow an authenticated user to disrupt service via local access. Affected products include various Intel Xeon and Core processor families, as well as specific Intel Xeon D processors.

Impact

Exploitation of this vulnerability can lead to a denial-of-service condition, causing affected systems to become unresponsive or unavailable.

Remediation

Intel has released microcode updates for the affected processors, available on the Intel GitHub repository. Users should also update to the latest firmware provided by their system manufacturer. For Dell PowerEdge servers, specific update instructions can be found on the Dell Support website.