{
  "document": {
    "aggregate_severity": {
      "text": "High"
    },
    "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/ubuntu18.04els/vex/2024/cve-2024-27459-els_os-ubuntu18_04els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-06-13T08:26:09Z",
      "generator": {
        "date": "2026-06-13T08:26:09Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2024-27459-ELS_OS-UBUNTU18.04ELS",
      "initial_release_date": "2024-07-08T11:15:00Z",
      "revision_history": [
        {
          "date": "2024-07-08T11:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2025-11-29T14:28:30Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2025-12-23T22:15:38Z",
          "number": "3",
          "summary": "Update document"
        },
        {
          "date": "2026-06-13T08:26:09Z",
          "number": "4",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "4"
    },
    "title": "Security update on CVE-2024-27459"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu 18.04",
                "product": {
                  "name": "Ubuntu 18.04",
                  "product_id": "Ubuntu-18",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Ubuntu"
          }
        ],
        "category": "vendor",
        "name": "Canonical Ltd."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64",
                "product": {
                  "name": "openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64",
                  "product_id": "openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/openvpn@2.4.4-2ubuntu1.7%2Btuxcare.els1?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64"
        },
        "product_reference": "openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-27459",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "description",
          "text": "The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary code with more privileges.",
          "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"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "Ubuntu-18:openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2024-27459"
        },
        {
          "category": "external",
          "summary": "https://community.openvpn.net/openvpn/wiki/CVE-2024-27459",
          "url": "https://community.openvpn.net/openvpn/wiki/CVE-2024-27459"
        },
        {
          "category": "external",
          "summary": "https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/",
          "url": "https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/"
        },
        {
          "category": "external",
          "summary": "https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html",
          "url": "https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html"
        }
      ],
      "release_date": "2024-07-08T11:15:00Z",
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Ubuntu-18:openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        },
        {
          "category": "impact",
          "date": "2026-06-12T12:59:17.996777Z",
          "details": "Not affected: CVE-2024-27459 targets the Windows-only OpenVPN “interactive service” used by the OpenVPN GUI. Linux deployments of OpenVPN (including version 2.4.4) do not include or use this Windows service, so the vulnerable code path is not present.",
          "product_ids": [
            "Ubuntu-18:openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64"
          ]
        }
      ]
    }
  ]
}