CVE-2023-4756 Explained : Impact and Mitigation

This CVE-2023-4756 involves a stack-based buffer overflow in the GitHub repository gpac/gpac prior to version 2.3-DEV.

Understanding CVE-2023-4756

This section delves into the details and impact of CVE-2023-4756, along with the technical aspects and mitigation strategies.

What is CVE-2023-4756?

CVE-2023-4756 is a vulnerability related to a stack-based buffer overflow in the gpac/gpac GitHub repository. Specifically, versions prior to 2.3-DEV are affected by this security issue.

The Impact of CVE-2023-4756

The impact of this vulnerability is rated as medium with a CVSSv3 base score of 5.9. It has a low attack complexity and vector, with low impacts on availability, confidentiality, and integrity. No privileges are required, and user interaction is not necessary for exploitation.

Technical Details of CVE-2023-4756

In this section, we will explore the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

CVE-2023-4756 is classified under CWE-121 - Stack-based Buffer Overflow. The vulnerability allows attackers to overwrite the stack buffer of the application, potentially leading to arbitrary code execution.

Affected Systems and Versions

The affected vendor is gpac, specifically the product gpac/gpac. Versions prior to 2.3-DEV are susceptible to this stack-based buffer overflow vulnerability.

Exploitation Mechanism

Exploiting CVE-2023-4756 involves crafting a malicious input to overrun the stack buffer of the gpac/gpac application. By providing excessive data, an attacker can manipulate the program's memory and execute arbitrary code.

Mitigation and Prevention

In this final section, we will discuss immediate steps to take, long-term security practices, and the importance of timely patching and updates.

Immediate Steps to Take

To mitigate the risk associated with CVE-2023-4756, it is crucial to update the gpac/gpac application to a version beyond 2.3-DEV. Additionally, monitoring network traffic for any signs of exploitation can help detect and prevent attacks.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and staying informed about software vulnerabilities are essential long-term security measures to protect against stack-based buffer overflows and other threats.

Patching and Updates

Regularly checking for software updates and security patches from the vendor, as well as promptly applying them to the affected systems, is critical in reducing the exposure to known vulnerabilities like CVE-2023-4756.