{
  "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/rhel7els/vex/2024/cve-2024-21853-els_os-rhel7els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-10-20T15:07:33Z",
      "generator": {
        "date": "2026-10-20T15:07:33Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2024-21853-ELS_OS-RHEL7ELS",
      "initial_release_date": "2024-11-13T21:15:00Z",
      "revision_history": [
        {
          "date": "2024-11-13T21:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-10-19T21:09:02Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-10-20T15:07:33Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "3"
    },
    "title": "Security update on CVE-2024-21853"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux 7",
                "product": {
                  "name": "Red Hat Enterprise Linux 7",
                  "product_id": "Red-Hat-7",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux:7:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "microcode_ctl-2:2.1-73.25.el7_9.x86_64",
                "product": {
                  "name": "microcode_ctl-2:2.1-73.25.el7_9.x86_64",
                  "product_id": "microcode_ctl-2:2.1-73.25.el7_9.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/microcode_ctl@2.1-73.25.el7_9?arch=x86_64&epoch=2"
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                }
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                "name": "microcode_ctl-2:2.1-73.26.el7_9.x86_64",
                "product": {
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                  "product_id": "microcode_ctl-2:2.1-73.26.el7_9.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/microcode_ctl@2.1-73.26.el7_9?arch=x86_64&epoch=2"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64",
                "product": {
                  "name": "microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64",
                  "product_id": "microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/microcode_ctl@2.1-73.25.el7_9.tuxcare.els1?arch=x86_64&epoch=2"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64",
                "product": {
                  "name": "microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64",
                  "product_id": "microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/microcode_ctl@2.1-73.26.el7_9.tuxcare.els1?arch=x86_64&epoch=2"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64 as a component of Red Hat Enterprise Linux 7",
          "product_id": "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64"
        },
        "product_reference": "microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Red-Hat-7"
      },
      {
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        "full_product_name": {
          "name": "microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64 as a component of Red Hat Enterprise Linux 7",
          "product_id": "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64"
        },
        "product_reference": "microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64",
        "relates_to_product_reference": "Red-Hat-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-2:2.1-73.25.el7_9.x86_64 as a component of Red Hat Enterprise Linux 7",
          "product_id": "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.x86_64"
        },
        "product_reference": "microcode_ctl-2:2.1-73.25.el7_9.x86_64",
        "relates_to_product_reference": "Red-Hat-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-2:2.1-73.26.el7_9.x86_64 as a component of Red Hat Enterprise Linux 7",
          "product_id": "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.x86_64"
        },
        "product_reference": "microcode_ctl-2:2.1-73.26.el7_9.x86_64",
        "relates_to_product_reference": "Red-Hat-7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-21853",
      "cwe": {
        "id": "CWE-1245",
        "name": "Improper Finite State Machines (FSMs) in Hardware Logic"
      },
      "notes": [
        {
          "category": "description",
          "text": "Improper finite state machines (FSMs) in the hardware logic in some 4th and 5th Generation Intel(R) Xeon(R) Processors may allow an authorized user to potentially enable denial of service 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": [
          "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.tuxcare.els1.x86_64",
          "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.tuxcare.els1.x86_64"
        ],
        "known_affected": [
          "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.x86_64",
          "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2024-21853"
        },
        {
          "category": "external",
          "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01101.html",
          "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01101.html"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2024/12/msg00024.html",
          "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00024.html"
        }
      ],
      "release_date": "2024-11-13T21:15:00Z",
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-10-20T10:53:19.014092Z",
          "details": "Affected",
          "product_ids": [
            "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.x86_64",
            "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red-Hat-7:microcode_ctl-2:2.1-73.25.el7_9.x86_64",
            "Red-Hat-7:microcode_ctl-2:2.1-73.26.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}