Intel® Processors MMIO Stale Data Advisory

2022-10-19T00:00:00

Description

### 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](<https://vulners.com/cve/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](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N>) CVEID: [CVE-2022-21125](<https://vulners.com/cve/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](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N>) CVEID: [CVE-2022-21127](<https://vulners.com/cve/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](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N>) CVEID: [CVE-2022-21166](<https://vulners.com/cve/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](<https://www.first.org/cvss/calculator/3.1#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: <https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html> ### 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](<https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/resources/q4-2022-intel-sgx-tcb-recovery-guidance.html>). Refer to [Intel SGX Attestation Technical Details](<https://www.intel.com/content/www/us/en/security-center/technical-details/sgx-attestation-technical-details.html>) for more information on the Intel SGX TCB recovery process. Further [TCB Recovery Guidance](<https://software.intel.com/content/www/us/en/develop/download/intel-software-guard-extensions-trusted-computing-base-tcb-recovery.html>) 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.

{"id": "INTEL:INTEL-SA-00615", "vendorId": null, "type": "intel", "bulletinFamily": "info", "title": "Intel\u00ae Processors MMIO Stale Data\u00a0Advisory", "description": "### Summary: \n\nPotential security vulnerabilities in Memory Mapped I/O (MMIO) for some Intel\u00ae Processors may allow information disclosure. Intel is releasing firmware updates to mitigate these potential vulnerabilities.\n\n### Vulnerability Details:\n\nCVEID: [CVE-2022-21123](<https://vulners.com/cve/CVE-2022-21123>)\n\nDescription: Incomplete cleanup of multi-core shared buffers for some Intel\u00ae Processors may allow an authenticated user to potentially enable information disclosure via local access.\n\nCVSS Base Score: 6.1 Medium\n\nCVSS Vector: [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N>)\n\nCVEID: [CVE-2022-21125](<https://vulners.com/cve/CVE-2022-21125>)\n\nDescription: Incomplete cleanup of microarchitectural fill buffers on some Intel\u00ae Processors may allow an authenticated user to potentially enable information disclosure via local access.\n\nCVSS Base Score: 5.6 Medium\n\nCVSS Vector: [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N>)\n\nCVEID: [CVE-2022-21127](<https://vulners.com/cve/CVE-2022-21127>)\n\nDescription: Incomplete cleanup in specific special register read operations for some Intel\u00ae Processors may allow an authenticated user to potentially enable information disclosure via local access.\n\nCVSS Base Score: 5.5 Medium\n\nCVSS Vector: [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N>)\n\nCVEID: [CVE-2022-21166](<https://vulners.com/cve/CVE-2022-21166>)\n\nDescription: Incomplete cleanup in specific special register write operations for some Intel\u00ae Processors may allow an authenticated user to potentially enable information disclosure via local access.\n\nCVSS Base Score: 5.5 Medium\n\nCVSS Vector: [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N](<https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N>)\n\n### Affected Products:\n\nSome Intel\u00ae Processors, see full list:\n\n<https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html>\n\n### Recommendations:\n\nIntel recommends that users of the affected Intel\u00ae Processors update to the latest version provided by the system manufacturer that addresses these issues.\n\nIntel\u00ae SGX PSW for Windows to version 2.16.100.3 or later: \n\n<https://registrationcenter.intel.com/en/products/download/3406/>\n\nIntel\u00ae SGX SDK for Windows to version 2.16.100.3 or later:\n\n<https://registrationcenter.intel.com/en/products/download/3407/>\n\nIntel\u00ae SGX DCAP for Windows to version 1.14.100.3 or later:\n\n<https://registrationcenter.intel.com/en/products/download/3610/>\n\nIntel\u00ae SGX PSW for Linux to version 2.17.100.3 or later:\n\n<https://01.org/intel-software-guard-extensions/downloads>\n\nIntel\u00ae SGX SDK for Linux to version 2.17.100.3 or later:\n\n<https://01.org/intel-software-guard-extensions/downloads>\n\nIntel\u00ae SGX DCAP for Linux to version 1.14.100.3 or later:\n\n<https://01.org/intel-software-guard-extensions/downloads>\n\nTo address this issue, an Intel SGX TCB Recovery is planned. Details can be found [here](<https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/resources/q4-2022-intel-sgx-tcb-recovery-guidance.html>).\n\nRefer to [Intel SGX Attestation Technical Details](<https://www.intel.com/content/www/us/en/security-center/technical-details/sgx-attestation-technical-details.html>) for more information on the Intel SGX TCB recovery process. \n\n\nFurther [TCB Recovery Guidance](<https://software.intel.com/content/www/us/en/develop/download/intel-software-guard-extensions-trusted-computing-base-tcb-recovery.html>) for developers is available \n\n\n### Acknowledgements:\n\nThe 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.\n\nIntel, 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.\n", "published": "2022-10-19T00:00:00", "modified": "2022-06-14T00:00:00", "cvss": {"score": 0.0, "vector": "NONE"}, "cvss2": {}, "cvss3": {}, "href": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.html", "reporter": "Intel Security Center", "references": [], "cvelist": ["CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21127", "CVE-2022-21166"], "immutableFields": [], "lastseen": "2023-02-08T18:04:06", "viewCount": 6, "enchantments": {"score": {"value": 0.6, "vector": "NONE"}, "dependencies": {"references": [{"type": "almalinux", "idList": ["ALSA-2022:6460"]}, {"type": "alpinelinux", "idList": 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"VERACODE:36027", "VERACODE:36028", "VERACODE:36029"]}, {"type": "vmware", "idList": ["VMSA-2022-0016"]}, {"type": "xen", "idList": ["XSA-404"]}]}, "epss": [{"cve": "CVE-2022-21123", "epss": "0.000460000", "percentile": "0.128480000", "modified": "2023-03-19"}, {"cve": "CVE-2022-21125", "epss": "0.000560000", "percentile": "0.213520000", "modified": "2023-03-19"}, {"cve": "CVE-2022-21127", "epss": "0.000450000", "percentile": "0.118840000", "modified": "2023-03-19"}, {"cve": "CVE-2022-21166", "epss": "0.000460000", "percentile": "0.128480000", "modified": "2023-03-19"}], "vulnersScore": 0.6}, "_state": {"score": 1684014194, "dependencies": 1675879463, "epss": 1679299457}, "_internal": {"score_hash": "941ed42f16f5b3fe1a462f07ea1b1fdf"}, "severity": "MEDIUM"}

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(CVE-2022-21166)\n\n - Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. 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Intel® Processors MMIO Stale Data Advisory

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