CVE-2021-1901 Explained : Impact and Mitigation

This article discusses the details of CVE-2021-1901, a vulnerability found in Qualcomm products affecting various versions within different product lines.

Understanding CVE-2021-1901

This section provides an overview of the vulnerability and its impact.

What is CVE-2021-1901?

The CVE-2021-1901 involves a possible buffer over-read due to the lack of length check while flashing meta images in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables.

The Impact of CVE-2021-1901

The vulnerability's CVSS v3.1 base score is 4.6, indicating a medium severity issue. It has low attack complexity, physical attack vector, and high availability impact.

Technical Details of CVE-2021-1901

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

CVE-2021-1901 is categorized as a Buffer Over-read in Boot issue.

Affected Systems and Versions

Qualcomm products impacted by this vulnerability include Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, and Snapdragon Wearables across a range of versions.

Exploitation Mechanism

The vulnerability can be potentially exploited by attackers to perform a buffer over-read during the flashing of meta images.

Mitigation and Prevention

Here, we explore the steps to mitigate and prevent exploitation of CVE-2021-1901.

Immediate Steps to Take

Users are advised to apply recommended patches and updates provided by Qualcomm.

Long-Term Security Practices

Implementing secure coding practices and performing regular security audits can help prevent similar vulnerabilities.

Patching and Updates

Regularly updating firmware and software on affected Qualcomm devices is crucial to address the CVE-2021-1901 vulnerability.