Vulnerability-Lookup

CNVD-2021-91647

Vulnerability from cnvd - Published: 2021-11-26

Title

c-http存在未明漏洞

Description

C-Http是波兰Marcin Dłubakowski个人开发者的一个开源的、用 C 编写的 Http 1.1 WebServer。 YotsuyaNight c-http v0.1.0版本存在安全漏洞源于软件处理delimitedread函数中的url长度存在问题，攻击者可利用该漏洞通过传递给delimitedread函数的长url请求来导致服务拒绝。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://github.com/YotsuyaNight/c-http

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-21574

Impacted products

Name
Marcin Dłubakowski c-http v0.1.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-21574"
    }
  },
  "description": "C-Http\u662f\u6ce2\u5170Marcin D\u0142ubakowski\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u4e00\u4e2a\u5f00\u6e90\u7684\u3001\u7528 C \u7f16\u5199\u7684 Http 1.1 WebServer\u3002\n\nYotsuyaNight c-http v0.1.0\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6\u5904\u7406delimitedread\u51fd\u6570\u4e2d\u7684url\u957f\u5ea6\u5b58\u5728\u95ee\u9898\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u4f20\u9012\u7ed9delimitedread\u51fd\u6570\u7684\u957furl\u8bf7\u6c42\u6765\u5bfc\u81f4\u670d\u52a1\u62d2\u7edd\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://github.com/YotsuyaNight/c-http",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-91647",
  "openTime": "2021-11-26",
  "products": {
    "product": "Marcin D\u0142ubakowski c-http v0.1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-21574",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-03",
  "title": "c-http\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2020-21574 (GCVE-0-2020-21574)

Vulnerability from cvelistv5 – Published: 2021-11-02 17:45 – Updated: 2024-08-04 14:30

Summary

Buffer overflow vulnerability in YotsuyaNight c-http v0.1.0, allows attackers to cause a denial of service via a long url request which is passed to the delimitedread function.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2338 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/YotsuyaNight/c-http/issues/1	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.

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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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