CVE-2023-21630 : What You Need to Know

This CVE record was published on April 4, 2023, by Qualcomm. It involves an integer overflow vulnerability in the Multimedia Framework which occurs when the "synx bind" function is called alongside the "synx signal" function.

Understanding CVE-2023-21630

This section will delve into the details of CVE-2023-21630, highlighting its impact, technical aspects, and mitigation strategies.

What is CVE-2023-21630?

CVE-2023-21630 is a memory corruption vulnerability in the Multimedia Framework caused by an integer overflow triggered when the "synx bind" function is invoked simultaneously with the "synx signal" function.

The Impact of CVE-2023-21630

This vulnerability has a high severity level, impacting the confidentiality, integrity, and availability of affected systems. The CVSS base score for CVE-2023-21630 is 8.4, categorizing it as a high-risk issue. It has a low attack complexity and can be exploited locally without the need for privileges.

Technical Details of CVE-2023-21630

In this section, we will discuss the vulnerability description, affected systems and versions, as well as the exploitation mechanism of CVE-2023-21630.

Vulnerability Description

The vulnerability arises due to an integer overflow when the "synx bind" function is called concurrently with the "synx signal" function in the Multimedia Framework.

Affected Systems and Versions

A range of Qualcomm Snapdragon products are affected by CVE-2023-21630, including FastConnect series, QCA series, SA series, SD series, SM series, Snapdragon platforms, SW series, and WCD/WCN/WSA series products.

Exploitation Mechanism

The exploitation of this vulnerability involves triggering an integer overflow in the Multimedia Framework by calling the vulnerable functions simultaneously, leading to memory corruption.

Mitigation and Prevention

To address CVE-2023-21630, immediate and long-term security measures should be taken to mitigate the risks associated with the vulnerability.

Immediate Steps to Take

Patch all affected systems with the necessary security updates provided by Qualcomm.
Monitor systems for any suspicious activity that might indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement robust security protocols and access controls to prevent unauthorized access to sensitive systems.
Conduct regular security audits and assessments to identify and address potential vulnerabilities proactively.

Patching and Updates

Ensure that all Qualcomm products affected by CVE-2023-21630 are updated with the latest patches and firmware releases to mitigate the risk of exploitation.