CVE-2021-35119 : Exploit Details and Defense Strategies

This CVE involves a potential out-of-bounds read vulnerability in FIPS event processing within various Qualcomm Snapdragon products. The vulnerability stems from improper validation of firmware length, impacting a range of products like Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile.

Understanding CVE-2021-35119

This section delves into the details surrounding CVE-2021-35119.

What is CVE-2021-35119?

The vulnerability in CVE-2021-35119 presents a potential out-of-bounds read issue in FIPS event processing due to inadequate validation of firmware length in Qualcomm Snapdragon products.

The Impact of CVE-2021-35119

The CVSS score for this vulnerability is medium, with a base score of 5.5 depicting a high availability impact on affected systems, albeit with low confidentiality and integrity impacts.

Technical Details of CVE-2021-35119

Here we explore the technical aspects of CVE-2021-35119.

Vulnerability Description

The vulnerability involves a buffer over-read in WLAN Host, affecting a wide range of Snapdragon products from Qualcomm.

Affected Systems and Versions

Various Snapdragon products, including Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile, are impacted by this vulnerability across multiple versions.

Exploitation Mechanism

The issue arises from improper validation of firmware length, leading to out-of-bounds read access during FIPS event processing.

Mitigation and Prevention

This section discusses strategies to address and prevent CVE-2021-35119.

Immediate Steps to Take

Mitigation steps include monitoring vendor security bulletins and applying patches promptly upon release.

Long-Term Security Practices

Implementing robust security practices, such as regular system updates, code reviews, and security assessments, can bolster long-term security.

Patching and Updates

Regularly check for security advisories from Qualcomm and apply relevant patches to mitigate the risk of exploitation.