{
  "document": {
    "aggregate_severity": {
      "text": "Moderate"
    },
    "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/ubuntu16.04els/vex/2024/cve-2024-43420-els_os-ubuntu16_04els.json"
      }
    ],
    "title": "Security update on CVE-2024-43420",
    "tracking": {
      "current_release_date": "2025-12-23T22:15:38Z",
      "generator": {
        "date": "2025-12-23T22:15:38Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2024-43420-ELS_OS-UBUNTU16.04ELS",
      "initial_release_date": "2024-01-01T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-01-01T00:00:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2025-08-05T08:16:02Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2025-12-23T22:15:38Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu 16.04",
                "product": {
                  "name": "Ubuntu 16.04",
                  "product_id": "Ubuntu-16",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Ubuntu"
          }
        ],
        "category": "vendor",
        "name": "Canonical Ltd."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64",
                "product": {
                  "name": "intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64",
                  "product_id": "intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/intel-microcode@3.20250512.0ubuntu0.16.04.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64 as a component of Ubuntu 16.04",
          "product_id": "Ubuntu-16:intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64"
        },
        "product_reference": "intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-16"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-43420",
      "cwe": {
        "id": "CWE-1423",
        "name": "Exposure of Sensitive Information caused by Shared Microarchitectural Predictor State that Influences Transient Execution"
      },
      "notes": [
        {
          "category": "description",
          "text": "Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) processors may allow an authenticated 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": {
        "fixed": [
          "Ubuntu-16:intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2024-43420"
        }
      ],
      "release_date": "2025-05-13T21:03:00",
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "Ubuntu-16:intel-microcode-0:3.20250512.0ubuntu0.16.04.1+tuxcare.els1.amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Medium"
        }
      ]
    }
  ]
}