CVE-2023-21627 : Vulnerability Insights and Analysis

This CVE, assigned by Qualcomm, involves memory corruption in Trusted Execution Environment when calling a service API with an invalid address.

Understanding CVE-2023-21627

This section will provide an in-depth look into the nature and impact of CVE-2023-21627.

What is CVE-2023-21627?

CVE-2023-21627 is a vulnerability that occurs due to memory corruption in Trusted Execution Environment. The issue arises when a service API is called with an invalid address, leading to potential exploitation.

The Impact of CVE-2023-21627

The vulnerability poses a medium severity risk with a base score of 6.7 according to CVSS v3.1 metrics. It has a low attack complexity and can have a high impact on availability, confidentiality, and integrity. The exploit requires high privileges and user interaction is not needed.

Technical Details of CVE-2023-21627

In this section, we will delve into the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in Trusted Execution Environment results from incorrect type conversion or cast when calling a service API with an invalid address.

Affected Systems and Versions

The issue affects various Qualcomm Snapdragon products including AQT1000, QCA6390, QCA6391, QCA6420, QCA6426, QCA6430, and other listed versions across different platforms.

Exploitation Mechanism

The vulnerability can be exploited by triggering the memory corruption in the Trusted Execution Environment through the use of an invalid address, potentially leading to unauthorized access or system compromise.

Mitigation and Prevention

Addressing CVE-2023-21627 requires immediate action to mitigate risks and secure the affected systems.

Immediate Steps to Take

To mitigate the vulnerability, it is recommended to apply patches or updates provided by Qualcomm. Additionally, limiting access and privileges to the Trusted Execution Environment can help reduce the likelihood of exploitation.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and monitoring for anomalous behavior can enhance overall system security and resilience against similar vulnerabilities in the future.

Patching and Updates

Staying informed about security advisories from Qualcomm and promptly applying patches or updates to the affected systems is crucial to prevent exploitation of CVE-2023-21627. Regularly checking for firmware and software updates can help maintain a secure environment.