CVE-2019-9208 : Security Advisory and Response

Wireshark versions 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6 were susceptible to a TCAP dissector issue that could lead to crashes. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2019-9208

This CVE addresses a vulnerability in Wireshark versions 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6 that could result in the TCAP dissector crashing.

What is CVE-2019-9208?

In Wireshark versions 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6, a flaw in the TCAP dissector could cause the application to crash. Developers fixed this issue by modifying the code to prevent NULL pointer dereferences.

The Impact of CVE-2019-9208

The vulnerability could lead to crashes in Wireshark, affecting the stability and functionality of the network protocol analyzer.

Technical Details of CVE-2019-9208

Wireshark versions 2.4.0 to 2.4.12 and 2.6.0 to 2.6.6 were affected by this vulnerability.

Vulnerability Description

The issue stemmed from the TCAP dissector, which could crash due to NULL pointer dereferences.

Affected Systems and Versions

Wireshark versions 2.4.0 to 2.4.12
Wireshark versions 2.6.0 to 2.6.6

Exploitation Mechanism

Exploiting this vulnerability could lead to denial of service or potentially arbitrary code execution.

Mitigation and Prevention

To address CVE-2019-9208, follow these steps:

Immediate Steps to Take

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

Long-Term Security Practices

Regularly update Wireshark and other software to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Ensure that Wireshark is regularly updated to the latest version to mitigate known security risks.