CVE-2021-30308 : Security Advisory and Response

This article provides detailed information about CVE-2021-30308, a vulnerability associated with Qualcomm products.

Understanding CVE-2021-30308

CVE-2021-30308 is related to a possible buffer overflow vulnerability found in various Qualcomm products. The vulnerability arises from improper validation of buffer size.

What is CVE-2021-30308?

The vulnerability involves a potential buffer overflow issue that occurs when printing the HARQ memory partition detail in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, and other Qualcomm product lines.

The Impact of CVE-2021-30308

The vulnerability has a CVSS base score of 7.8, indicating a high-severity threat. It can lead to a compromise of confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2021-30308

This section delves into the specific technical aspects of the CVE-2021-30308 vulnerability.

Vulnerability Description

The vulnerability results from inadequate validation of buffer size, potentially leading to a buffer overflow scenario.

Affected Systems and Versions

Qualcomm products affected by CVE-2021-30308 include Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, and Snapdragon Mobile. Various versions of these products are impacted, ranging from AQT1000 to WSA8835.

Exploitation Mechanism

The vulnerability can be exploited locally with low privileges required, making it a significant security concern for impacted devices.

Mitigation and Prevention

In this section, we explore the steps to mitigate the risks posed by CVE-2021-30308.

Immediate Steps to Take

Users are advised to apply security patches provided by Qualcomm promptly to mitigate the vulnerability. Additionally, restricting network access to vulnerable devices can help reduce the risk of exploitation.

Long-Term Security Practices

Implementing robust input validation mechanisms and conducting regular security assessments can contribute to enhancing the overall security posture against buffer overflow vulnerabilities.

Patching and Updates

Regularly monitor Qualcomm's security advisories and apply firmware updates and patches as soon as they are released to address known security vulnerabilities.