{ "document": { "aggregate_severity": { "text": "Medium" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos8.4els/vex/2023/cve-2023-22655-els_os-centos8_4els.json" } ], "tracking": { "current_release_date": "2026-06-05T20:41:21Z", "generator": { "date": "2026-06-05T20:41:21Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-22655-ELS_OS-CENTOS8.4ELS", "initial_release_date": "2023-01-01T00:00:00Z", "revision_history": [ { "date": "2023-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-06-04T20:43:31Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-06-05T20:41:21Z", "number": "3", "summary": "Update 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"product_reference": "microcode_ctl-4:20210216-1.20230214.1.el8_4.x86_64", "relates_to_product_reference": "CentOS-8.4" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-22655", "cwe": { "id": "CWE-693", "name": "Protection Mechanism Failure" }, "notes": [ { "category": "description", "text": "Protection mechanism failure in some 3rd and 4th Generation Intel(R) Xeon(R) Processors when using Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "known_affected": [ "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-22655" } ], "release_date": "2024-03-12T00:00:00Z", "remediations": [ { "category": "no_fix_planned", "date": "2026-06-05T20:39:51.889063Z", "details": "This vulnerability is only exploitable by a local attacker who already has high privileges and only on 3rd/4th Gen Intel Xeon systems where SGX or TDX has been explicitly enabled and provisioned (e.g., via BIOS/platform configuration), and it is assessed as high complexity with no remote vector. In centrally managed server and cloud VM environments, SGX/TDX are exposed to workloads only when intentionally configured by the platform or hypervisor, which limits exposure to specialized deployments and makes practical exploitation unlikely. With no availability impact and effects scoped to compromising SGX/TDX integrity boundaries, this can be safely deprioritized relative to remotely exploitable or unauthenticated threats.", "product_ids": [ "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N", "version": "3.1" }, "products": [ "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230214.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20230512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20231114.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20240813.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250211.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20210216-1.20250512.1.el8_4.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.tuxcare.els1.x86_64", "CentOS-8.4:microcode_ctl-4:20251111-1.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }