2021.2 IPU - Intel Atom® Processor Advisory

Summary:

A potential security vulnerability in some Intel Atom® Processors may allow information disclosure or denial of service. Intel is releasing firmware updates to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2021-33120

Description: Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom® Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access.

CVSS Base Score: 3.6 Low

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L****

Affected Products:

A list of impacted products can be found here.

Recommendations:

Intel recommends that users of affected Intel® Processors update to the latest version firmware provided by the system manufacturer that addresses these issues.

Intel has released microcode updates for the affected Intel® Processors that are currently supported on the public github repository. Please see details below on access to the microcode:

Public Github: <https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files&gt;__

Acknowledgements:

This issue was found internally by Intel employee. Intel would like to thank Brandon Miller for reporting the 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.