CVE-2018-11871 Explained : Impact and Mitigation

Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear devices by Qualcomm are affected by a WLAN function vulnerability that can lead to buffer overwrites.

Understanding CVE-2018-11871

What is CVE-2018-11871?

The vulnerability in Snapdragon devices allows buffer overwrites during the processing of the set pdev parameter command due to a lack of input validation.

The Impact of CVE-2018-11871

This vulnerability can be exploited to execute arbitrary code or cause a denial of service on affected devices.

Technical Details of CVE-2018-11871

Vulnerability Description

The issue arises from a lack of input validation in the WLAN function, leading to buffer overwrites during the processing of specific commands.

Affected Systems and Versions

Products: Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear
Versions: IPQ4019, IPQ8064, IPQ8074, MDM9206, MDM9607, MDM9635M, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6564, and more

Exploitation Mechanism

The vulnerability is triggered by processing the set pdev parameter command, allowing malicious actors to exploit the lack of input validation.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability
Monitor Qualcomm's security bulletins for updates and advisories

Long-Term Security Practices

Regularly update firmware and software on affected devices
Implement network segmentation and access controls to limit exposure

Patching and Updates

Keep abreast of security advisories from Qualcomm
Apply recommended patches promptly to mitigate the risk of exploitation