{
  "document": {
    "aggregate_severity": {
      "text": "Low"
    },
    "category": "csaf_security_advisory",
    "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"
      },
      {
        "category": "details",
        "text": "2.6.11.tuxcare.els1-r0:\n  - CVE-2025-2704 fix handling of corrupted TLS-crypt-v2 packets in early handshake",
        "title": "Details"
      }
    ],
    "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/alpinelinux3.18els/advisories/2025/clsa-2025_1766488912.json"
      },
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2025:1766488912",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1766488912"
      }
    ],
    "tracking": {
      "current_release_date": "2025-12-23T11:22:29Z",
      "generator": {
        "date": "2025-12-23T11:22:29Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2025:1766488912",
      "initial_release_date": "2025-12-23T11:22:29Z",
      "revision_history": [
        {
          "date": "2025-12-23T11:22:29Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "openvpn: Fix of CVE-2025-2704"
  },
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            "branches": [
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                  "product_identification_helper": {
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                "category": "product_version",
                "name": "openvpn-dev-2.6.11.tuxcare.els1-rr0.x86_64",
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                "category": "product_version",
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                "category": "product_version",
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                  "product_identification_helper": {
                    "purl": "pkg:apk/tuxcare/openvpn-openrc@2.6.11.tuxcare.els1-rr0?arch=x86_64"
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                }
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                "category": "product_version",
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                "product": {
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                    "purl": "pkg:apk/tuxcare/openvpn@2.6.11.tuxcare.els1-rr0?arch=x86_64"
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              {
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                    "purl": "pkg:apk/tuxcare/openvpn-doc@2.6.11.tuxcare.els1-rr0?arch=x86_64"
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            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
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    "relationships": [
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        "full_product_name": {
          "name": "openvpn-dev-2.6.11.tuxcare.els1-rr0.x86_64 as a component of Alpine Linux 3.18",
          "product_id": "Alpine-Linux-3.18:openvpn-dev-2.6.11.tuxcare.els1-rr0.x86_64"
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        },
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        "full_product_name": {
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          "product_id": "Alpine-Linux-3.18:openvpn-2.6.11.tuxcare.els1-rr0.x86_64"
        },
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        "relates_to_product_reference": "Alpine-Linux-3.18"
      },
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        "full_product_name": {
          "name": "openvpn-doc-2.6.11.tuxcare.els1-rr0.x86_64 as a component of Alpine Linux 3.18",
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        },
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        "relates_to_product_reference": "Alpine-Linux-3.18"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-2704",
      "cwe": {
        "id": "CWE-754",
        "name": "Improper Check for Unusual or Exceptional Conditions"
      },
      "notes": [
        {
          "category": "description",
          "text": "OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to trigger a denial of service by corrupting and replaying network packets in the early handshake phase",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "Alpine-Linux-3.18:openvpn-2.6.11.tuxcare.els1-rr0.x86_64",
          "Alpine-Linux-3.18:openvpn-auth-pam-2.6.11.tuxcare.els1-rr0.x86_64",
          "Alpine-Linux-3.18:openvpn-dev-2.6.11.tuxcare.els1-rr0.x86_64",
          "Alpine-Linux-3.18:openvpn-doc-2.6.11.tuxcare.els1-rr0.x86_64",
          "Alpine-Linux-3.18:openvpn-openrc-2.6.11.tuxcare.els1-rr0.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-2704"
        },
        {
          "category": "external",
          "summary": "https://community.openvpn.net/openvpn/wiki/CVE-2025-2704",
          "url": "https://community.openvpn.net/openvpn/wiki/CVE-2025-2704"
        },
        {
          "category": "external",
          "summary": "https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.html",
          "url": "https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.html"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2025/04/02/5",
          "url": "http://www.openwall.com/lists/oss-security/2025/04/02/5"
        }
      ],
      "release_date": "2025-04-02T21:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-12-23T11:21:54.315719Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1766488912",
          "product_ids": [
            "Alpine-Linux-3.18:openvpn-2.6.11.tuxcare.els1-rr0.x86_64",
            "Alpine-Linux-3.18:openvpn-auth-pam-2.6.11.tuxcare.els1-rr0.x86_64",
            "Alpine-Linux-3.18:openvpn-dev-2.6.11.tuxcare.els1-rr0.x86_64",
            "Alpine-Linux-3.18:openvpn-doc-2.6.11.tuxcare.els1-rr0.x86_64",
            "Alpine-Linux-3.18:openvpn-openrc-2.6.11.tuxcare.els1-rr0.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1766488912"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ]
    }
  ]
}