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Vulnerability Details :

CVE-2021-34431

Assigner Org ID-e51fbebd-6053-4e49-959f-1b94eeb69a2c

Published At-22 Jul, 2021 | 13:45

Updated At-04 Aug, 2024 | 00:12

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.

EPSS History

Score

Latest Score

N/A

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Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:eclipse

Assigner Org ID:e51fbebd-6053-4e49-959f-1b94eeb69a2c

Published At:22 Jul, 2021 | 13:45

Updated At:04 Aug, 2024 | 00:12

▼CVE Numbering Authority (CNA)

Affected Products

Vendor

Eclipse Foundation AISBL

Product

Eclipse Mosquitto

Versions

Affected

From 1.6 before unspecified (custom)
From unspecified through 2.0.10 (custom)

Problem Types

Type	CWE ID	Description
CWE	CWE-401	CWE-401: Missing Release of Memory after Effective Lifetime

Type: CWE

CWE ID: CWE-401

Description: CWE-401: Missing Release of Memory after Effective Lifetime

Credits

Thanks to Kathrin Kleinhammer of OTARIS Interactive Services GmbH for discovering and reporting this issue.

References

Hyperlink	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191	x_refsource_CONFIRM

Hyperlink: https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191

Resource:

x_refsource_CONFIRM

▼Authorized Data Publishers (ADP)

CVE Program Container

References

Hyperlink	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191	x_refsource_CONFIRM x_transferred

Hyperlink: https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191

Resource:

x_refsource_CONFIRM

x_transferred

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:emo@eclipse.org

Published At:22 Jul, 2021 | 14:15

Updated At:03 Aug, 2021 | 17:49

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary	2.0	4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P

Type: Primary

Version: 3.1

Base score: 6.5

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Type: Primary

Version: 2.0

Base score: 4.0

Base severity: MEDIUM

Vector:

AV:N/AC:L/Au:S/C:N/I:N/A:P

CPE Matches

Eclipse Foundation AISBL

>>mosquitto>>Versions from 1.6(inclusive) to 2.0.10(inclusive)

cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-401	Primary	nvd@nist.gov
CWE-401	Secondary	emo@eclipse.org

CWE ID: CWE-401

Type: Primary

Source: nvd@nist.gov

CWE ID: CWE-401

Type: Secondary

Source: emo@eclipse.org

References

Hyperlink	Source	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191	emo@eclipse.org	Mailing List Vendor Advisory

Hyperlink: https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191

Source: emo@eclipse.org

Resource:

Mailing List

Vendor Advisory

CVE-2021-34431

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EPSS History

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Stakeholder-Specific Vulnerability Categorization (SSVC)

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