FKIE_CVE-2017-7495

Vulnerability from fkie_nvd - Published: 2017-05-15 18:29 - Updated: 2025-04-20 01:37
Summary
fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.
References
secalert@redhat.comhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2Release Notes, Vendor Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2017/05/15/2Mailing List, Patch, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/98491
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1450261Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://source.android.com/security/bulletin/2017-09-01
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/05/15/2Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/98491
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1450261Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://source.android.com/security/bulletin/2017-09-01
Impacted products
Vendor Product Version
linux linux_kernel *

{
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    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "795D2A87-E785-47CB-80E2-388CCD1F5CF8",
              "versionEndIncluding": "4.6.1",
              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users\u0027 files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file."
    },
    {
      "lang": "es",
      "value": "En el archivo fs/ext4/inode.c en el kernel de Linux anterior a versi\u00f3n 4.6.2, cuando es usado el modo data=ordered de ext4, maneja inapropiadamente una lista de necesidades de descarga antes de confirmar, lo que permite a los usuarios locales obtener informaci\u00f3n confidencial de los archivos de otros usuarios en circunstancias oportunistas al esperar un reinicio del hardware, crear un archivo nuevo, hacer llamadas al sistema de escritura y leer este archivo."
    }
  ],
  "id": "CVE-2017-7495",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
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        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV30": [
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          "attackVector": "LOCAL",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2017-05-15T18:29:00.373",
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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