Vulnerability-Lookup

GHSA-CW49-2735-59J9

Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2022-05-24 17:22

Details

RIOT 2020.04 has a buffer overflow in the base64 decoder. The decoding function base64_decode() uses an output buffer estimation function to compute the required buffer capacity and validate against the provided buffer size. The base64_estimate_decode_size() function calculates the expected decoded size with an arithmetic round-off error and does not take into account possible padding bytes. Due to this underestimation, it may be possible to craft base64 input that causes a buffer overflow.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-15350"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-07-07T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "RIOT 2020.04 has a buffer overflow in the base64 decoder. The decoding function base64_decode() uses an output buffer estimation function to compute the required buffer capacity and validate against the provided buffer size. The base64_estimate_decode_size() function calculates the expected decoded size with an arithmetic round-off error and does not take into account possible padding bytes. Due to this underestimation, it may be possible to craft base64 input that causes a buffer overflow.",
  "id": "GHSA-cw49-2735-59j9",
  "modified": "2022-05-24T17:22:30Z",
  "published": "2022-05-24T17:22:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15350"
    },
    {
      "type": "WEB",
      "url": "https://github.com/RIOT-OS/RIOT/pull/14400"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1jMCAi8uawV1-an5uCghIxT2TEdxCE1Lk/view?usp=sharing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-15350 (GCVE-0-2020-15350)

Vulnerability from cvelistv5 – Published: 2020-07-07 16:37 – Updated: 2024-08-04 13:15

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://drive.google.com/file/d/1jMCAi8uawV1-an5u…	x_refsource_MISC
https://github.com/RIOT-OS/RIOT/pull/14400	x_refsource_MISC

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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.
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GHSA-CW49-2735-59J9

CVE-2020-15350 (GCVE-0-2020-15350)

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