Vulnerability-Lookup

GHSA-JRF8-P6CC-FR4F

Vulnerability from github – Published: 2022-05-24 17:26 – Updated: 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 (GCVE-0-2020-14936)

Vulnerability from cvelistv5 – Published: 2020-08-18 16:35 – Updated: 2024-08-04 13:00

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://drive.google.com/file/d/1FypWH_g475jSL0mD…	x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/issues/1351	x_refsource_MISC

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          "dateUpdated": "2024-08-04T13:00:52.077Z",
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        "references": [
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            ],
            "url": "https://drive.google.com/file/d/1FypWH_g475jSL0mDFzquaATCeRIHQ2kj/view?usp=sharing"
          },
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            ],
            "url": "https://github.com/contiki-ng/contiki-ng/issues/1351"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "n/a",
          "vendor": "n/a",
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        }
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      "problemTypes": [
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        },
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          ],
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        }
      ],
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-JRF8-P6CC-FR4F

CVE-2020-14936 (GCVE-0-2020-14936)

Tags

Sightings

Nomenclature