CVE-2017-11120 : What You Need to Know

A buffer overflow vulnerability in Broadcom Wi-Fi chips can be exploited by attackers to trigger an internal buffer overflow in the Wi-Fi firmware.

Understanding CVE-2017-11120

This CVE identifies a specific vulnerability in Broadcom Wi-Fi chips that can be exploited through a malformed RRM neighbor report frame.

What is CVE-2017-11120?

The CVE-2017-11120 vulnerability allows attackers to trigger a buffer overflow in the Wi-Fi firmware of Broadcom BCM4355C0 Wi-Fi chips and other models by crafting a specific type of RRM neighbor report frame.

The Impact of CVE-2017-11120

Attackers can exploit this vulnerability to potentially execute arbitrary code or disrupt the normal operation of affected devices.
This vulnerability is also known as B-V2017061204.

Technical Details of CVE-2017-11120

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

Vulnerability Description

An internal buffer overflow can be triggered in the Wi-Fi firmware of Broadcom BCM4355C0 Wi-Fi chips and other models when a malformed RRM neighbor report frame is created.

Affected Systems and Versions

Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit this vulnerability by crafting a specific type of RRM neighbor report frame.

Mitigation and Prevention

Protecting systems from CVE-2017-11120 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Broadcom or device manufacturers promptly.
Monitor vendor advisories and security bulletins for updates.

Long-Term Security Practices

Regularly update firmware and software to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Ensure that all Wi-Fi chips are updated with the latest firmware patches to address this vulnerability.