{
  "id": "CVE-2018-13093",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-07-03T10:29:00.223",
  "lastModified": "2019-08-06T17:15:21.303",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en fs/xfs/xfs_icache.c en el kernel de Linux hasta la versi\u00f3n 4.17.3. Existe una desreferencia de puntero NULL y p\u00e1nico en lookup_slow() en un puntero NULL inode->i_ops cuando se navega por rutas en una imagen xfs corrupta. Esto ocurre a causa de la ausencia de una validaci\u00f3n correcta de que los inodes en cach\u00e9 est\u00e9n libres durante la asignaci\u00f3n."
    }
  ],
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        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:2029",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:2043",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199367",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "url": "https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/4094-1/",
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    {
      "url": "https://usn.ubuntu.com/4118-1/",
      "source": "cve@mitre.org"
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}