fkie_cve-2018-1093
Vulnerability from fkie_nvd
Published
2018-04-02 03:29
Modified
2024-11-21 03:59
Summary
The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.
References
secalert@redhat.comhttp://openwall.com/lists/oss-security/2018/03/29/1Mailing List
secalert@redhat.comhttps://bugzilla.kernel.org/show_bug.cgi?id=199181Issue Tracking
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1560782Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6fPatch
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
secalert@redhat.comhttps://usn.ubuntu.com/3676-1/
secalert@redhat.comhttps://usn.ubuntu.com/3676-2/
secalert@redhat.comhttps://usn.ubuntu.com/3752-1/
secalert@redhat.comhttps://usn.ubuntu.com/3752-2/
secalert@redhat.comhttps://usn.ubuntu.com/3752-3/
secalert@redhat.comhttps://usn.ubuntu.com/3754-1/
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4188
af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2018/03/29/1Mailing List
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.kernel.org/show_bug.cgi?id=199181Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1560782Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6fPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3676-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3676-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3752-1/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3752-2/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3752-3/
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3754-1/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4188
Impacted products
Vendor Product Version
linux linux_kernel *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EA4F2AD9-993F-4246-B6F9-7723FF82AF6C",
              "versionEndIncluding": "4.15.15",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n ext4_valid_block_bitmap en fs/ext4/balloc.c en el kernel de Linux hasta la versi\u00f3n 4.15.15 permite que los atacantes provoquen un denegaci\u00f3n de servicio (lectura fuera de l\u00edmites y cierre inesperado del sistema) mediante una imagen ext4 manipulada dado que balloc.c y ialloc.c no validan los n\u00fameros de los bloques de mapa de bits."
    }
  ],
  "id": "CVE-2018-1093",
  "lastModified": "2024-11-21T03:59:10.063",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-04-02T03:29:00.307",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List"
      ],
      "url": "http://openwall.com/lists/oss-security/2018/03/29/1"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
      "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199181"
    },
    {
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      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f"
    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html"
    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3676-1/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3676-2/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3752-1/"
    },
    {
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      "url": "https://usn.ubuntu.com/3752-2/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3752-3/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3754-1/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://www.debian.org/security/2018/dsa-4188"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "http://openwall.com/lists/oss-security/2018/03/29/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199181"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f"
    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/3676-1/"
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    {
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      "url": "https://usn.ubuntu.com/3676-2/"
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      "url": "https://usn.ubuntu.com/3752-2/"
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      "url": "https://usn.ubuntu.com/3752-3/"
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      "url": "https://usn.ubuntu.com/3754-1/"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.debian.org/security/2018/dsa-4188"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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