CVE-2017-6469 : Exploit Details and Defense Strategies

Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 are affected by an LDSS dissector crash vulnerability that can be triggered by packet injection or a corrupted capture file. The issue was addressed by modifying the epan/dissectors/packet-ldss.c file to ensure proper memory allocation.

Understanding CVE-2017-6469

This CVE entry pertains to a specific vulnerability in Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10.

What is CVE-2017-6469?

CVE-2017-6469 is a vulnerability in Wireshark that allows for a crash in the LDSS dissector when manipulated by injecting packets or using a corrupted capture file.

The Impact of CVE-2017-6469

The vulnerability could lead to a denial of service (DoS) condition due to the crash of the LDSS dissector in affected Wireshark versions.

Technical Details of CVE-2017-6469

Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 are susceptible to the following technical aspects:

Vulnerability Description

The LDSS dissector crash in Wireshark versions 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10 can be activated by injecting packets or using a corrupted capture file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10

Exploitation Mechanism

The vulnerability can be exploited by injecting packets or utilizing a corrupted capture file to trigger the LDSS dissector crash.

Mitigation and Prevention

To address CVE-2017-6469, consider the following mitigation strategies:

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 timely installation of security patches and updates provided by Wireshark to mitigate the CVE-2017-6469 vulnerability.