SB2019020913 - Fedora 28 update for mosquitto

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Main Vulnerability Database SB2019020913

SB2019020913 - Fedora 28 update for mosquitto

Published: February 9, 2019 Updated: April 24, 2025

Security Bulletin ID SB2019020913
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2018-12546)

The vulnerability allows a remote authenticated user to gain access to potentially sensitive information.

The vulnerability exists due to an error when messages were still delivered to clients after their access to topic was revoked. A remote authenticated user was able to obtain potentially sensitive information.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2018-12550)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to insecure default permissions to topics and messages, if the ACL file is blank. A remote attacker can gain unauthorized access to sensitive information.



3) Input validation error (CVE-ID: CVE-2018-12551)

The vulnerability allows a remote attacker to bypass password authentication.

The vulnerability exists due to insufficient validation of malformed input in a password file, when it is used for authentication. Incorrect data in password file will be treated by the application as a username with empty password, allowing attacker to gain unauthorized access to the application.


Remediation

Install update from vendor's website.

References