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GSD-2021-22547

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
In IoT Devices SDK, there is an implementation of calloc() that doesn't have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.
Aliases
Aliases
CVE-2021-22547
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{
  "GSD": {
    "alias": "CVE-2021-22547",
    "description": "In IoT Devices SDK, there is an implementation of calloc() that doesn\u0027t have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.",
    "id": "GSD-2021-22547"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "aliases": [
        "CVE-2021-22547"
      ],
      "details": "In IoT Devices SDK, there is an implementation of calloc() that doesn\u0027t have a length check. An attacker could pass in memory objects larger than the buffer and wrap around to have a smaller buffer than required, allowing the attacker access to the other parts of the heap. We recommend upgrading the Google Cloud IoT Device SDK for Embedded C used to 1.0.3 or greater.",
      "id": "GSD-2021-22547",
      "modified": "2023-12-13T01:23:24.210510Z",
      "schema_version": "1.4.0"
    }
  },
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        "TITLE": "Buffer overrun in Google Cloud IoT Device SDK for Embedded C"
      },
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                    "version": {
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                          "version_affected": "\u003c=",
                          "version_value": "1.0.2"
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          }
        ]
      },
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          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
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                "value": "CWE-120 Buffer Overflow"
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      "references": {
        "reference_data": [
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            "name": "https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/blob/master/RELEASE-NOTES.md",
            "refsource": "MISC",
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          {
            "name": "https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/pull/119",
            "refsource": "MISC",
            "url": "https://github.com/GoogleCloudPlatform/iot-device-sdk-embedded-c/pull/119"
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        ]
      },
      "source": {
        "discovery": "EXTERNAL"
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    },
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        "nodes": [
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      },
      "lastModifiedDate": "2021-05-07T22:18Z",
      "publishedDate": "2021-05-04T13:15Z"
    }
  }
}



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