Vulnerability-Lookup

CNVD-2021-61419

Vulnerability from cnvd - Published: 2021-08-12

Title

Eclipse Mosquitto输入验证错误漏洞

Description

Eclipse Mosquitto是Eclipse基金会的一套开源的消息代理软件。 Eclipse Mosquitto 2.07 及更早版本中存在输入验证错误漏洞，攻击者可通过发送主题长度 = 0 的 PUBLISH 数据包导致服务器崩溃。

Severity

中

Patch Name

Eclipse Mosquitto输入验证错误漏洞的补丁

Patch Description

Eclipse Mosquitto是Eclipse基金会的一套开源的消息代理软件。 Eclipse Mosquitto 2.07 及更早版本中存在输入验证错误漏洞，攻击者可通过发送主题长度 = 0 的 PUBLISH 数据包导致服务器崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-34432

Impacted products

Name
Eclipse Mosquitto <=2.07

Show details on source website

JSON

To clipboard

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      "cveNumber": "CVE-2021-34432"
    }
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  "description": "Eclipse Mosquitto\u662fEclipse\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u6d88\u606f\u4ee3\u7406\u8f6f\u4ef6\u3002\n\nEclipse Mosquitto 2.07 \u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u4e3b\u9898\u957f\u5ea6 = 0 \u7684 PUBLISH \u6570\u636e\u5305\u5bfc\u81f4\u670d\u52a1\u5668\u5d29\u6e83\u3002",
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  "number": "CNVD-2021-61419",
  "openTime": "2021-08-12",
  "patchDescription": "Eclipse Mosquitto\u662fEclipse\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u6d88\u606f\u4ee3\u7406\u8f6f\u4ef6\u3002\r\n\r\nEclipse Mosquitto 2.07 \u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u4e3b\u9898\u957f\u5ea6 = 0 \u7684 PUBLISH \u6570\u636e\u5305\u5bfc\u81f4\u670d\u52a1\u5668\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Eclipse Mosquitto\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Eclipse Mosquitto \u003c=2.07"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34432",
  "serverity": "\u4e2d",
  "submitTime": "2021-07-29",
  "title": "Eclipse Mosquitto\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-34432 (GCVE-0-2021-34432)

Vulnerability from cvelistv5 – Published: 2021-07-27 15:25 – Updated: 2026-07-02 09:31

Summary

In Eclipse Mosquitto versions 2.0.7 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.

Severity

No CVSS data available.

CWE

CWE-20 - Improper Input Validation

Assigner

eclipse mitre root

References

1 reference

URL	Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
The Eclipse Foundation	Eclipse Mosquitto	Affected: unspecified , ≤ 2.0.7 (custom)

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.

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.

Related by attack behaviour

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.