{
  "id": "CVE-2007-3732",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2019-11-07T22:15:10.070",
  "lastModified": "2019-11-12T15:18:19.297",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that \"current\" references work. Without this, \"current\" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash."
    },
    {
      "lang": "es",
      "value": "En Linux versiones 2.6 anteriores a 2.6.23, la funci\u00f3n TRACE_IRQS_ON en iret_exc llama a una funci\u00f3n C sin asegurar de que los segmentos est\u00e9n configurados apropiadamente. El %fs del kernel debe ser restaurado antes de la llamada en TRACE_IRQS_ON y antes de habilitar las interrupciones, para que operen las referencias \"current\". Sin esto, \"current\" usado en la ventana entre iret_exc y la mitad de error_code donde %fs se restablece, se bloquear\u00eda."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P",
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 1.9
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 3.4,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.0",
              "versionEndExcluding": "2.6.23",
              "matchCriteriaId": "323D5193-E93A-4713-81F4-3E31D4EE51C3"
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  "references": [
    {
      "url": "https://access.redhat.com/security/cve/cve-2007-3732",
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732",
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://security-tracker.debian.org/tracker/CVE-2007-3732",
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}