Vulnerability-Lookup

CNVD-2020-04922

Vulnerability from cnvd - Published: 2020-02-13

Title

Microchip Technology BluSDK Smart拒绝服务漏洞

Description

Microchip Technology BluSDK Smart是Microchip Technology开发的一款实现Bluetooth的SDK软件包。 Microchip Technology BluSDK Smart 6.2及之前版本（用于ATSAMB11）中的Bluetooth Low Energy实现存在安全漏洞，该漏洞源于程序未能限制链路层数据的长度。攻击者可借助特制的数据包利用该漏洞造成拒绝服务（崩溃）。

Severity

低

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.microchip.com

Reference

https://asset-group.github.io/disclosures/sweyntooth/

Impacted products

Name
Microchip Microchip Technology BluSDK Smart <= 6.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-19195",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-19195"
    }
  },
  "description": "Microchip Technology BluSDK Smart\u662fMicrochip Technology\u5f00\u53d1\u7684\u4e00\u6b3e\u5b9e\u73b0Bluetooth\u7684SDK\u8f6f\u4ef6\u5305\u3002\n\nMicrochip Technology BluSDK Smart 6.2\u53ca\u4e4b\u524d\u7248\u672c\uff08\u7528\u4e8eATSAMB11\uff09\u4e2d\u7684Bluetooth Low Energy\u5b9e\u73b0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236\u94fe\u8def\u5c42\u6570\u636e\u7684\u957f\u5ea6\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5d29\u6e83\uff09\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.microchip.com",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-04922",
  "openTime": "2020-02-13",
  "products": {
    "product": "Microchip Microchip Technology BluSDK Smart \u003c= 6.2"
  },
  "referenceLink": "https://asset-group.github.io/disclosures/sweyntooth/",
  "serverity": "\u4f4e",
  "submitTime": "2020-02-11",
  "title": "Microchip Technology BluSDK Smart\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-19195 (GCVE-0-2019-19195)

Vulnerability from cvelistv5 – Published: 2020-02-10 20:35 – Updated: 2024-08-05 02:09

Summary

The Bluetooth Low Energy implementation on Microchip Technology BluSDK Smart through 6.2 for ATSAMB11 devices does not properly restrict link-layer data length on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.microchip.com/wwwproducts/en/ATSAMB11	x_refsource_MISC
https://asset-group.github.io/disclosures/sweyntooth/	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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          ],
          "url": "https://asset-group.github.io/disclosures/sweyntooth/"
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          "ID": "CVE-2019-19195",
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  },
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  "dataVersion": "5.1"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2020-04922

CVE-2019-19195 (GCVE-0-2019-19195)

Tags

Sightings

Nomenclature

Related by attack behaviour