SB2023102807 - openEuler 22.03 LTS SP1 update for mosquitto 

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Main Vulnerability Database SB2023102807

SB2023102807 - openEuler 22.03 LTS SP1 update for mosquitto

Published: October 28, 2023

Security Bulletin ID SB2023102807
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Memory leak (CVE-ID: CVE-2023-3592)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when processing v5 CONNECT packets. A remote attacker can force the application to leak memory by sending messages with invalid property types.


2) Resource exhaustion (CVE-ID: CVE-2023-5632)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion by establishing a connection to the mosquitto server without sending data, cause the EPOLLOUT event to be added, which results excessive CPU consumption.


Remediation

Install update from vendor's website.

References