Vulnerability-Lookup

GHSA-V2CG-FRQ6-HW49

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. The function parsing the received SNMP request does not verify the input message's requested variables against the capacity of the internal SNMP engine buffer. If the number of variables in the request exceeds the allocated buffer, a memory write out of the buffer boundaries occurs. This write operation provides a possibility to overwrite other variables allocated in the .bss section by the application. Because the sender of the frame is in control of the content that will be written beyond the buffer limits, and there is no strict process memory separation, this issue may allow overwriting of sensitive memory areas of an IoT device.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-14934"
  ],
  "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. The function parsing the received SNMP request does not verify the input message\u0027s requested variables against the capacity of the internal SNMP engine buffer. If the number of variables in the request exceeds the allocated buffer, a memory write out of the buffer boundaries occurs. This write operation provides a possibility to overwrite other variables allocated in the .bss section by the application. Because the sender of the frame is in control of the content that will be written beyond the buffer limits, and there is no strict process memory separation, this issue may allow overwriting of sensitive memory areas of an IoT device.",
  "id": "GHSA-v2cg-frq6-hw49",
  "modified": "2022-05-24T17:26:06Z",
  "published": "2022-05-24T17:26:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14934"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contiki-ng/contiki-ng/issues/1352"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1NIf0Y0S47Lu85uSi29kt9tgSh0jYZYfj/view?usp=sharing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-14934 (GCVE-0-2020-14934)

Vulnerability from cvelistv5 – Published: 2020-08-18 16:25 – 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/1NIf0Y0S47Lu85uSi…	x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/issues/1352	x_refsource_MISC

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          "dateUpdated": "2024-08-04T13:00:52.043Z",
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            ],
            "url": "https://drive.google.com/file/d/1NIf0Y0S47Lu85uSi29kt9tgSh0jYZYfj/view?usp=sharing"
          },
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        ],
        "title": "CVE Program Container"
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    "cna": {
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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-V2CG-FRQ6-HW49

CVE-2020-14934 (GCVE-0-2020-14934)

Tags

Sightings

Nomenclature