CVE-2018-11858 : Security Advisory and Response

In Snapdragon Mobile versions SD 835, SD 845, and SD 850, a buffer overwrite vulnerability exists when processing the IE set command due to insufficient input validation.

Understanding CVE-2018-11858

This CVE affects Snapdragon Mobile devices with specific versions and poses a risk of buffer overwrite in WLAN.

What is CVE-2018-11858?

CVE-2018-11858 is a vulnerability found in Snapdragon Mobile versions SD 835, SD 845, and SD 850, where a buffer overwrite can occur during the processing of the IE set command. This issue arises from inadequate input validation for the IE length.

The Impact of CVE-2018-11858

The vulnerability could be exploited by attackers to trigger buffer overwrites, potentially leading to arbitrary code execution or system crashes on affected devices.

Technical Details of CVE-2018-11858

Snapdragon Mobile devices with the following versions are affected:

SD 835
SD 845
SD 850

Vulnerability Description

The vulnerability stems from a lack of proper input validation for the IE length when processing the IE set command, allowing for buffer overwrites.

Affected Systems and Versions

Product: Snapdragon Mobile
Vendor: Qualcomm, Inc.
Versions: SD 835, SD 845, SD 850

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted IE set commands to the affected devices, triggering buffer overwrites.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2018-11858.

Immediate Steps to Take

Apply security patches provided by Qualcomm to address the vulnerability.
Monitor for any unusual network activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update firmware and software on Snapdragon Mobile devices to ensure protection against known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm to promptly apply patches and secure the affected devices.