Use-After-Free Vulnerability in libmodbus v3.1.6 Leads to Denial of Service
CVE-2024-36844

7.5HIGH

Key Information:

Vendor

libmodbus

Status
LIBModbus
Vendor
CVE Published:
31 May 2024

What is CVE-2024-36844?

Libmodbus version 3.1.6 is susceptible to a use-after-free vulnerability through the ctx->backend pointer. This flaw allows attackers to exploit the vulnerability to deliver crafted messages to the unit-test-server. As a result, this can lead to Denial of Service attacks, disrupting the operations of applications that utilize Libmodbus. The issue emphasizes the importance of patching and updating software components to maintain security and operational integrity.

References

https://github.com/stephane/libmodbus/issues/749

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

JSON
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CVE-2024-36844 : Use-After-Free Vulnerability in libmodbus v3.1.6 Leads to Denial of Service