{ "document": { "aggregate_severity": { "text": "Critical" }, "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-2024-27903-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-2024-27903-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": "2025-11-29T14:28:36Z", "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-2024-27903" }, "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-2024-27903", "cwe": { "id": "CWE-283", "name": "Unverified Ownership" }, "notes": [ { "category": "description", "text": "OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in which can be used to interact with the privileged OpenVPN interactive service.", "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-2024-27903" }, { "category": "external", "summary": "https://community.openvpn.net/openvpn/wiki/CVE-2024-27903", "url": "https://community.openvpn.net/openvpn/wiki/CVE-2024-27903" }, { "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": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/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": "Critical" }, { "category": "impact", "date": "2026-06-12T12:59:17.996777Z", "details": "CVE-2024-27903 is a Windows-specific flaw: in OpenVPN 2.6.9 and earlier on Windows, plug-ins could be loaded from untrusted directories and interact with the privileged OpenVPN Interactive Service. The evaluated deployments use OpenVPN 2.4.4 on Linux VMs/servers, which do not include the Windows Interactive Service or the Windows plug‑in loading mechanism, so this code path is not present. Therefore, this CVE does not affect the environment.", "product_ids": [ "Ubuntu-18:openvpn-0:2.4.4-2ubuntu1.7+tuxcare.els1.amd64" ] } ] } ] }