The latest security information on Intel® products.
Intel® Processors MMIO Stale Data Advisory
| Intel ID: | INTEL-SA-00615 |
|---|---|
| Advisory Category: | Hardware |
| Impact of vulnerability: | Information Disclosure |
| Severity rating: | MEDIUM |
| Original release: | 06/14/2022 |
| Last revised: | 10/19/2022 |
Summary:
Potential security vulnerabilities in Memory Mapped I/O (MMIO) for some Intel® Processors may allow information disclosure. Intel is releasing firmware updates to mitigate these potential vulnerabilities.
Vulnerability Details:
CVEID: CVE-2022-21123
Description: Incomplete cleanup of multi-core shared buffers for some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVSS Base Score: 6.1 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CVEID: CVE-2022-21125
Description: Incomplete cleanup of microarchitectural fill buffers on some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVSS Base Score: 5.6 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVEID: CVE-2022-21127
Description: Incomplete cleanup in specific special register read operations for some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVSS Base Score: 5.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVEID: CVE-2022-21166
Description: Incomplete cleanup in specific special register write operations for some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVSS Base Score: 5.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:
Some Intel® Processors, see full list:
Recommendations:
Intel recommends that users of the affected Intel® Processors update to the latest version provided by the system manufacturer that addresses these issues.
Intel® SGX PSW for Windows to version 2.16.100.3 or later:
https://registrationcenter.intel.com/en/products/download/3406/
Intel® SGX SDK for Windows to version 2.16.100.3 or later:
https://registrationcenter.intel.com/en/products/download/3407/
Intel® SGX DCAP for Windows to version 1.14.100.3 or later:
https://registrationcenter.intel.com/en/products/download/3610/
Intel® SGX PSW for Linux to version 2.17.100.3 or later:
https://01.org/intel-software-guard-extensions/downloads
Intel® SGX SDK for Linux to version 2.17.100.3 or later:
https://01.org/intel-software-guard-extensions/downloads
Intel® SGX DCAP for Linux to version 1.14.100.3 or later:
https://01.org/intel-software-guard-extensions/downloads
To address this issue, an Intel SGX TCB Recovery is planned. Details can be found here.
Refer to Intel SGX Attestation Technical Details for more information on the Intel SGX TCB recovery process.
Further TCB Recovery Guidance for developers is available
Acknowledgements:
The following issues were found internally by Intel employees. Intel would like to thank Ke Sun, Alan Miller, Shlomi Alkalay, Robert Jones, Ezra Caltum for reporting CVE-2022-21123, CVE-2022-21125, CVE-2022-21127, CVE-2022-21166. Jason Kilman for reporting CVE-2022-21123, CVE-2022-21127, and Scott Cape and Anthony Wojciechowski for reporting CVE-2022-21127.
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.
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 products and services described 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 products that have met their End of Servicing Updates may no longer receive functional and security updates. For additional details on support and servicing, please see this help article.
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 http://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 Corporation. Intel, the Intel logo, and other Intel marks are trademarks of Intel Corporation or its subsidiaries United States and other countries. Other names and brands may be claimed as the property of others.
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 secure@intel.com. 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.
Need product support?
If you...
- Have questions about the security features of an Intel product
- Require technical support
- Want product updates or patches
Please visit Support & Downloads.