github - ghsa-jrf8-p6cc-fr4f

ghsa-jrf8-p6cc-fr4f

Vulnerability from github

Published

2022-05-24 17:26

Modified

2022-05-24 17:26

Details

Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. Functions parsing the OIDs in SNMP requests lack sufficient allocated target-buffer capacity verification when writing parsed OID values. The function snmp_oid_decode_oid() may overwrite memory areas beyond the provided target buffer, when called from snmp_message_decode() upon an SNMP request reception. Because the content of the write operations is externally provided in the SNMP requests, it enables a remote overwrite of an IoT device's memory regions beyond the allocated buffer. This overflow may allow remote overwrite of stack and statically allocated variables memory regions by sending a crafted SNMP request.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-14936"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-08-18T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. Functions parsing the OIDs in SNMP requests lack sufficient allocated target-buffer capacity verification when writing parsed OID values. The function snmp_oid_decode_oid() may overwrite memory areas beyond the provided target buffer, when called from snmp_message_decode() upon an SNMP request reception. Because the content of the write operations is externally provided in the SNMP requests, it enables a remote overwrite of an IoT device\u0027s memory regions beyond the allocated buffer. This overflow may allow remote overwrite of stack and statically allocated variables memory regions by sending a crafted SNMP request.",
  "id": "GHSA-jrf8-p6cc-fr4f",
  "modified": "2022-05-24T17:26:06Z",
  "published": "2022-05-24T17:26:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14936"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contiki-ng/contiki-ng/issues/1351"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1FypWH_g475jSL0mDFzquaATCeRIHQ2kj/view?usp=sharing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2020-14936

Vulnerability from cvelistv5

Published

2020-08-18 16:35

Modified

2024-08-04 13:00

Severity ?

Summary

References

▼	URL	Tags
	https://drive.google.com/file/d/1FypWH_g475jSL0mDFzquaATCeRIHQ2kj/view?usp=sharing	x_refsource_MISC
	https://github.com/contiki-ng/contiki-ng/issues/1351	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:00:52.077Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://drive.google.com/file/d/1FypWH_g475jSL0mDFzquaATCeRIHQ2kj/view?usp=sharing"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/issues/1351"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Buffer overflows were discovered in Contiki-NG 4.4 through 4.5, in the SNMP agent. Functions parsing the OIDs in SNMP requests lack sufficient allocated target-buffer capacity verification when writing parsed OID values. The function snmp_oid_decode_oid() may overwrite memory areas beyond the provided target buffer, when called from snmp_message_decode() upon an SNMP request reception. Because the content of the write operations is externally provided in the SNMP requests, it enables a remote overwrite of an IoT device\u0027s memory regions beyond the allocated buffer. This overflow may allow remote overwrite of stack and statically allocated variables memory regions by sending a crafted SNMP request."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-08-18T16:35:20",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/contiki-ng/contiki-ng/issues/1351"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-14936",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
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              {
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                      "version": {
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                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
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        "data_version": "4.0",
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        },
        "problemtype": {
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        "references": {
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            },
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              "refsource": "MISC",
              "url": "https://github.com/contiki-ng/contiki-ng/issues/1351"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2020-08-18T16:35:20",
    "dateReserved": "2020-06-21T00:00:00",
    "dateUpdated": "2024-08-04T13:00:52.077Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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