CVE-2021-30264 : Exploit Details and Defense Strategies

This article discusses CVE-2021-30264, a vulnerability found in Qualcomm's products, which could lead to a possible use after free due to improper validation of references.

Understanding CVE-2021-30264

Qualcomm's products, including Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, and others, are affected by this vulnerability.

What is CVE-2021-30264?

The vulnerability arises from improper validation of references from callbacks to internal store tables in various Qualcomm products.

The Impact of CVE-2021-30264

The vulnerability could be exploited to cause a use after free scenario, potentially leading to arbitrary code execution or system compromise.

Technical Details of CVE-2021-30264

The vulnerability has been assigned a CVSS base score of 6.7, indicating a medium severity level with a high impact on confidentiality, integrity, and availability.

Vulnerability Description

The issue stems from inadequate validation, creating a scenario where attackers could manipulate memory references leading to a use after free situation.

Affected Systems and Versions

Qualcomm products such as Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, and others are affected. The list of impacted versions is extensive.

Exploitation Mechanism

The vulnerability could be exploited locally, requiring high privileges for successful exploitation with no user interaction.

Mitigation and Prevention

To address CVE-2021-30264, immediate steps should be taken to secure affected systems and implement long-term security practices.

Immediate Steps to Take

Monitor Qualcomm's security bulletins for patches and updates related to this vulnerability.
Apply vendor-recommended security updates promptly.

Long-Term Security Practices

Implement proper input validation mechanisms to prevent use after free vulnerabilities.
Conduct regular security assessments on Qualcomm products for any potential vulnerabilities.

Patching and Updates

Stay informed about the latest security advisories from Qualcomm to deploy patches and updates to mitigate the CVE-2021-30264 vulnerability effectively.