Incorrect Authorization Affecting mosquitto package, versions <2.0.15-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-DEBIAN13-MOSQUITTO-5689429
  • published31 Aug 2021
  • disclosed30 Aug 2021

Introduced: 30 Aug 2021

CVE-2021-34434  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Debian:13 mosquitto to version 2.0.15-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mosquitto package and not the mosquitto package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.

CVSS Scores

version 3.1