{
  "id": "CVE-2017-17450",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-12-07T00:29:00.397",
  "lastModified": "2025-04-20T01:37:25.860",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces."
    },
    {
      "lang": "es",
      "value": "net/netfilter/xt_osf.c en el kernel de Linux hasta la versi\u00f3n 4.14.4 no requiere la capacidad CAP_NET_ADMIN para operaciones \"add_callback\" y \"remove_callback\", lo que permite que usuarios locales omitan las restricciones de acceso establecidas debido a que la estructura de datos xt_osf_fingers se comparte entre todos los espacios de nombres de la red."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "73A9E8BB-A037-453D-8A98-A22D9B0A0020"
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  "references": [
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html",
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    {
      "url": "https://lkml.org/lkml/2017/12/5/982",
      "source": "cve@mitre.org",
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    {
      "url": "https://usn.ubuntu.com/3583-1/",
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    {
      "url": "https://usn.ubuntu.com/3583-2/",
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    {
      "url": "https://usn.ubuntu.com/3617-1/",
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    {
      "url": "https://www.debian.org/security/2017/dsa-4073",
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    {
      "url": "https://www.debian.org/security/2018/dsa-4082",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/102110",
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      "tags": [
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}