gsd-2021-33285
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.
Aliases
Aliases
CVE-2021-33285


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{
  "GSD": {
    "alias": "CVE-2021-33285",
    "description": "In NTFS-3G versions \u003c 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the \"bytes_in_use\" field should be less than the \"bytes_allocated\" field. When it is not, the parsing of the records proceeds into the wild.",
    "id": "GSD-2021-33285",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-33285.html",
      "https://www.debian.org/security/2021/dsa-4971",
      "https://access.redhat.com/errata/RHSA-2021:3704",
      "https://access.redhat.com/errata/RHSA-2021:3703",
      "https://advisories.mageia.org/CVE-2021-33285.html",
      "https://security.archlinux.org/CVE-2021-33285",
      "https://linux.oracle.com/cve/CVE-2021-33285.html",
      "https://access.redhat.com/errata/RHSA-2022:1759"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-33285"
      ],
      "details": "In NTFS-3G versions \u003c 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the \"bytes_in_use\" field should be less than the \"bytes_allocated\" field. When it is not, the parsing of the records proceeds into the wild.",
      "id": "GSD-2021-33285",
      "modified": "2023-12-13T01:23:18.196201Z",
      "schema_version": "1.4.0"
    }
  },
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-01-13T19:59Z",
      "publishedDate": "2021-09-07T14:15Z"
    }
  }
}


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