CVE-2017-6472 : Vulnerability Insights and Analysis

Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 were affected by an RTMPT dissector bug causing an infinite loop when triggered by packet injection or corrupted capture files. The issue was resolved by incrementing a specific sequence value.

Understanding CVE-2017-6472

This CVE entry pertains to a vulnerability in Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 related to the RTMPT dissector.

What is CVE-2017-6472?

The RTMPT dissector in Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 had a bug causing an infinite loop. This issue could be triggered either by packet injection or by using a corrupted capture file. The problem was resolved by ensuring that a specific sequence value is incremented correctly.

The Impact of CVE-2017-6472

The vulnerability allowed for potential denial of service (DoS) attacks due to the infinite loop, impacting the availability and performance of Wireshark.

Technical Details of CVE-2017-6472

Wireshark vulnerability details and affected systems.

Vulnerability Description

The RTMPT dissector bug in Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 caused an infinite loop, leading to DoS potential.

Affected Systems and Versions

Wireshark versions 2.2.0 to 2.2.4
Wireshark versions 2.0.0 to 2.0.10

Exploitation Mechanism

The vulnerability could be exploited by:

Packet injection
Using corrupted capture files

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2017-6472 vulnerability.

Immediate Steps to Take

Update Wireshark to the latest patched version
Avoid opening suspicious capture files

Long-Term Security Practices

Regularly update Wireshark and other software
Implement network segmentation to contain potential attacks

Patching and Updates

Apply official patches provided by Wireshark
Stay informed about security advisories and updates from Wireshark