CVE-2021-35088 : Security Advisory and Response

This article provides detailed information about CVE-2021-35088, a vulnerability in multiple Qualcomm products.

Understanding CVE-2021-35088

CVE-2021-35088 is a possible out of bound read vulnerability due to improper validation of IE length during SSID IE parse when the channel is DFS. It affects various Qualcomm products.

What is CVE-2021-35088?

The vulnerability stems from incorrect validation during SSID IE parsing, potentially leading to an out-of-bound read in certain Qualcomm products.

The Impact of CVE-2021-35088

With a CVSS base score of 8.2, this vulnerability has a high severity level, posing a risk of data confidentiality compromise.

Technical Details of CVE-2021-35088

CVE-2021-35088 involves a buffer over-read in WLAN. The affected products include Snapdragon Auto, Compute, Connectivity, Consumer IOT, and more.

Vulnerability Description

The vulnerability results from inadequate validation of IE length during SSID IE parse in specific Qualcomm product lines.

Affected Systems and Versions

Qualcomm products including AQT1000, AR8035, AR9380, CSR8811, and many more are vulnerable to this issue.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting specially designed packets to trigger the out-of-bound read.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-35088, users are advised to take immediate action and implement long-term security practices.

Immediate Steps to Take

Users should apply security patches provided by Qualcomm or follow the recommended mitigation steps promptly.

Long-Term Security Practices

Incorporating robust cybersecurity measures, such as network segmentation and access controls, can enhance overall security posture.

Patching and Updates

Regularly updating firmware and software, as well as staying informed about security advisories, is crucial to prevent exploitation of vulnerabilities.