CVE-2018-14367 : Vulnerability Insights and Analysis

Wireshark versions 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7 were affected by a potential crash issue in the CoAP protocol dissector, which has been resolved.

Understanding CVE-2018-14367

Wireshark versions 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7 had a vulnerability that could lead to a crash due to improper handling of a NULL condition in the CoAP protocol dissector.

What is CVE-2018-14367?

The CoAP protocol dissector in Wireshark versions 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7 had a potential crash issue due to a lack of proper NULL condition checks.

The Impact of CVE-2018-14367

This vulnerability could potentially lead to a crash of Wireshark when processing CoAP protocol packets, impacting the availability and stability of the network monitoring tool.

Technical Details of CVE-2018-14367

Wireshark versions 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7 were susceptible to a crash vulnerability in the CoAP protocol dissector.

Vulnerability Description

The issue stemmed from a lack of proper NULL condition checks in the CoAP protocol dissector, potentially leading to a crash.

Affected Systems and Versions

Wireshark versions 2.6.0 to 2.6.1
Wireshark versions 2.4.0 to 2.4.7

Exploitation Mechanism

An attacker could exploit this vulnerability by sending specially crafted CoAP protocol packets to the affected Wireshark versions, triggering a crash.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-14367.

Immediate Steps to Take

Update Wireshark to the latest patched version that addresses the CoAP protocol dissector crash issue.
Avoid opening suspicious or untrusted network traffic captures with vulnerable Wireshark versions.

Long-Term Security Practices

Regularly update Wireshark and other network monitoring tools to mitigate potential vulnerabilities.
Implement network segmentation and access controls to minimize the impact of any successful exploitation.

Patching and Updates

Ensure timely application of security patches and updates provided by Wireshark to address known vulnerabilities and enhance the overall security posture of the network monitoring environment.