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ubuntucveUbuntu.comUB:CVE-2021-41039
HistoryDec 01, 2021 - 12:00 a.m.

CVE-2021-41039

2021-12-0100:00:00
ubuntu.com
ubuntu.com
5

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

39.4%

In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client
connecting with a large number of user-property properties could cause
excessive CPU usage, leading to a loss of performance and possible denial
of service.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchmosquitto< 1.6.9-1ubuntu0.1~esm1UNKNOWN
ubuntu22.04noarchmosquitto< 2.0.11-1ubuntu1.1UNKNOWN

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

39.4%