CVE-2017-11411 Explained : Impact and Mitigation

Wireshark versions 2.0.13 and 2.2.x through 2.2.7 were affected by a vulnerability in the openSAFETY dissector that could lead to crashes or memory exhaustion. The issue was resolved by adding length validation to the code.

Understanding CVE-2017-11411

This CVE entry addresses a vulnerability in Wireshark versions 2.0.13 and 2.2.x through 2.2.7 related to the openSAFETY dissector.

What is CVE-2017-11411?

The openSAFETY dissector in Wireshark versions 2.0.13 and 2.2.x through 2.2.7 had a flaw that could cause crashes or consume all available system memory. The vulnerability stemmed from an incomplete fix for CVE-2017-9350.

The Impact of CVE-2017-11411

The vulnerability could be exploited to crash Wireshark or exhaust system memory, potentially leading to denial of service.

Technical Details of CVE-2017-11411

Wireshark vulnerability details and affected systems.

Vulnerability Description

The issue in the openSAFETY dissector could result in crashes or memory depletion. The problem was mitigated by introducing length validation in the code.

Affected Systems and Versions

Wireshark versions 2.0.13 and 2.2.x through 2.2.7

Exploitation Mechanism

Attackers could exploit this vulnerability to crash Wireshark or exhaust system memory.

Mitigation and Prevention

Steps to address and prevent CVE-2017-11411.

Immediate Steps to Take

Update Wireshark to the latest version that includes the fix.
Avoid opening suspicious capture files or network traffic.

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

Apply patches provided by Wireshark to address the vulnerability and enhance system security.