{ "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/debian10els/vex/2023/cve-2023-43490-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-03T13:44:16Z", "generator": { "date": "2026-08-03T13:44:15Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-43490-ELS_OS-DEBIAN10ELS", "initial_release_date": "2023-01-01T00:00:00Z", "revision_history": [ { "date": "2023-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-07-31T18:30:46Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-08-01T22:30:48Z", "number": "3", "summary": "Update document" }, { "date": "2026-08-03T13:44:16Z", "number": "4", "summary": "Update document" } ], "status": "final", "version": "4" }, "title": "Security update on CVE-2023-43490" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian 10", "product": { "name": "Debian 10", "product_id": "Debian-10", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Debian" }, { "branches": [ { "category": "product_version", "name": "intel-microcode-0:3.20251111.1~deb10u1-.amd64", "product": { "name": "intel-microcode-0:3.20251111.1~deb10u1-.amd64", "product_id": "intel-microcode-0:3.20251111.1~deb10u1-.amd64", "product_identification_helper": { "purl": "pkg:deb/debian/intel-microcode@3.20251111.1~deb10u1-?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "Software in the Public Interest, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "product": { "name": "intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "product_id": "intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/intel-microcode@3.20251111.1~deb10u1%2Btuxcare.els1?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64" }, "product_reference": "intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "intel-microcode-0:3.20251111.1~deb10u1-.amd64 as a component of Debian 10", "product_id": "Debian-10:intel-microcode-0:3.20251111.1~deb10u1-.amd64" }, "product_reference": "intel-microcode-0:3.20251111.1~deb10u1-.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-43490", "cwe": { "id": "CWE-682", "name": "Incorrect Calculation" }, "notes": [ { "category": "description", "text": "Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R) SGX may allow a privileged user to potentially enable information disclosure 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": [ "Debian-10:intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "Debian-10:intel-microcode-0:3.20251111.1~deb10u1-.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-43490" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2024/05/msg00003.html", "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00003.html" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20240405-0009/", "url": "https://security.netapp.com/advisory/ntap-20240405-0009/" }, { "category": "external", "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01045.html", "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01045.html" } ], "release_date": "2024-02-14T00:00:00Z", "remediations": [ { "category": "no_fix_planned", "date": "2026-08-03T11:36:40.321483Z", "details": "This vulnerability requires a local, highly privileged attacker and a high‑complexity chain, which significantly limits practical exploitability in enterprise server/VM deployments. It only affects certain Intel Xeon D systems when Intel SGX is explicitly enabled and in use; if SGX is not enabled or not exposed to a guest by platform firmware/hypervisor, the affected microcode path is not reachable. Impact is confined to confidentiality of SGX enclave data (no integrity or availability effect), so systems without active SGX workloads present negligible risk.", "product_ids": [ "Debian-10:intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "Debian-10:intel-microcode-0:3.20251111.1~deb10u1-.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" }, "products": [ "Debian-10:intel-microcode-0:3.20251111.1~deb10u1+tuxcare.els1.amd64", "Debian-10:intel-microcode-0:3.20251111.1~deb10u1-.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }