CVE-2018-7419 : Exploit Details and Defense Strategies

Wireshark versions 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4 had a crashing issue in the NBAP dissector, which has been resolved by handling DCH ID initialization properly.

Understanding CVE-2018-7419

This CVE entry addresses a vulnerability in Wireshark versions 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4 related to the NBAP dissector.

What is CVE-2018-7419?

In Wireshark versions 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, a vulnerability in the NBAP dissector could lead to crashes. The issue was fixed by ensuring proper handling of DCH ID initialization.

The Impact of CVE-2018-7419

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

Technical Details of CVE-2018-7419

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The crashing issue in the NBAP dissector in Wireshark versions 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4 was caused by improper handling of DCH ID initialization.

Affected Systems and Versions

Wireshark versions 2.2.0 to 2.2.12
Wireshark versions 2.4.0 to 2.4.4

Exploitation Mechanism

Exploiting this vulnerability could lead to crashes in Wireshark, impacting the functionality of the network analysis tool.

Mitigation and Prevention

Protecting systems from CVE-2018-7419 requires specific actions to prevent exploitation and ensure network security.

Immediate Steps to Take

Update Wireshark to the latest version to apply the necessary patches.
Monitor official security advisories for any further updates or alerts.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential exploits.

Patching and Updates

Apply all available security patches and updates for Wireshark to mitigate the risk of exploitation.