Headline

CVE-2021-33120: INTEL-SA-00589

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.

2 years ago

CVE

Open in Source

#vulnerability #web #linux #dos #git

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2021.2 IPU - Intel Atom® Processor Advisory

Intel ID:

INTEL-SA-00589

Advisory Category:

Firmware

Impact of vulnerability:

Denial of Service, Information Disclosure

Severity rating:

LOW

Original release:

02/08/2022

Last revised:

02/08/2022

**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

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.

Revision History

Revision

Date

Description

1.0

02/08/2022

Initial Release

Legal Notices and Disclaimers

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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 product or component 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.

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Copyright © Intel Corporation 2022

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Detailed description of the vulnerability
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