CVE-2021-30256 Explained : Impact and Mitigation

A possible stack overflow vulnerability due to improper validation of camera name length has been identified in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, and Snapdragon Industrial IOT by Qualcomm.

Understanding CVE-2021-30256

This CVE identifies a vulnerability that could lead to a stack overflow when the camera name length is not properly validated within the VR Service.

What is CVE-2021-30256?

The CVE-2021-30256 vulnerability involves a possible stack overflow resulting from inadequate validation of the camera name length before copying the name in various Qualcomm products.

The Impact of CVE-2021-30256

With a CVSS base score of 8.4 and high severity ratings for confidentiality, integrity, and availability impacts, this vulnerability poses serious risks to affected systems.

Technical Details of CVE-2021-30256

The technical details of CVE-2021-30256 are as follows:

Vulnerability Description

Improper validation of camera name length in the VR Service could potentially lead to a stack overflow, opening the door to exploitation.

Affected Systems and Versions

Qualcomm products including Snapdragon Compute, Connectivity, and various others are affected by this vulnerability due to the unchecked camera name length.

Exploitation Mechanism

Attackers could exploit this vulnerability through deliberate manipulation of the camera name length to trigger a stack overflow.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-30256, consider the following steps:

Immediate Steps to Take

Update affected systems with patches provided by Qualcomm.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm to ensure timely application of patches and fixes.