CVE-2018-14369 : Exploit Details and Defense Strategies

Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15 were affected by a vulnerability in the HTTP2 dissector that could lead to crashes. The issue has been resolved by implementing a verification process.

Understanding CVE-2018-14369

This CVE entry addresses a vulnerability in Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15 related to the HTTP2 dissector.

What is CVE-2018-14369?

The vulnerability in Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15 could cause the HTTP2 dissector to crash due to improper handling of header data.

The Impact of CVE-2018-14369

The vulnerability could lead to crashes in Wireshark, affecting the stability and reliability of network packet analysis.

Technical Details of CVE-2018-14369

Wireshark vulnerability details and affected systems.

Vulnerability Description

The HTTP2 dissector in Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15 could crash due to improper handling of header data, impacting network packet analysis.

Affected Systems and Versions

Wireshark 2.6.0 to 2.6.1
Wireshark 2.4.0 to 2.4.7
Wireshark 2.2.0 to 2.2.15

Exploitation Mechanism

The vulnerability could be exploited by sending specially crafted network packets to the affected Wireshark versions, triggering the HTTP2 dissector crash.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2018-14369 vulnerability.

Immediate Steps to Take

Update Wireshark to the latest version to patch the vulnerability.
Avoid opening suspicious or untrusted network capture files.

Long-Term Security Practices

Regularly update and patch all software and tools used for network analysis.
Implement network segmentation to limit the impact of potential vulnerabilities.

Patching and Updates

Ensure that Wireshark is regularly updated to the latest version to address security vulnerabilities and improve network packet analysis.