The latest security information on Intel® products.
2024.1 IPU - Intel® Processor Bus Lock Advisory
| Intel ID: | INTEL-SA-00972 |
|---|---|
| Advisory Category: | Hardware |
| Impact of vulnerability: | Denial of Service |
| Severity rating: | MEDIUM |
| Original release: | 03/12/2024 |
| Last revised: | 03/12/2024 |
Summary:
A potential security vulnerability in the bus lock regulator mechanism for some Intel® Processors may allow denial of service. Intel is releasing firmware updates to mitigate this potential vulnerability.
Vulnerability Details:
CVEID: CVE-2023-39368
Description: Protection mechanism failure of bus lock regulator for some Intel® Processors may allow an unauthenticated user to potentially enable denial of service via network access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products:
A list of impacted products can be found here.
Recommendation:
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:
GitHub*: Public Github: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files
Detailed steps on the microcode loading points can be found at:
Acknowledgements:
Intel would like to thank HPI 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.
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