SB2024060413 - Multiple vulnerabilities in libmodbus

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Main Vulnerability Database SB2024060413

SB2024060413 - Multiple vulnerabilities in libmodbus

Published: June 4, 2024

Security Bulletin ID SB2024060413
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2024-36843)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the modbus_mapping_free() function. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Release of invalid pointer or reference (CVE-ID: CVE-2024-36845)

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

The vulnerability exists due to invalid pointer in the modbus_receive() function. A remote authenticated attacker can send a specially crafted message to the unit-test-server and cause a denial of service condition in the target system.


Remediation

Install update from vendor's website.

References