CVE-2021-40573 : Security Advisory and Response

This CVE-2021-40573 article provides details about a double-free vulnerability in the binary MP4Box of Gpac 1.0.1, potentially leading to a denial of service.

Understanding CVE-2021-40573

CVE-2021-40573 pertains to a specific vulnerability in Gpac 1.0.1 that can be exploited by attackers to trigger a denial of service attack.

What is CVE-2021-40573?

The double-free vulnerability in the gf_list_del function in list.c within the binary MP4Box of Gpac 1.0.1 enables malicious actors to cause a denial of service.

The Impact of CVE-2021-40573

Exploitation of this vulnerability can result in a denial of service attack on the affected systems.

Technical Details of CVE-2021-40573

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The double-free vulnerability exists in the gf_list_del function in list.c of the MP4Box binary in Gpac 1.0.1.

Affected Systems and Versions

Vendor: N/A
Product: N/A
Versions: N/A

Exploitation Mechanism

The vulnerability can be exploited by attackers to deliberately trigger a double-free scenario, leading to a denial of service.

Mitigation and Prevention

Outlined below are steps to mitigate and prevent exploitation of CVE-2021-40573.

Immediate Steps to Take

Apply the latest patches or updates provided by Gpac to address the double-free vulnerability.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Conduct regular security audits to identify vulnerabilities proactively.
Implement strict input validation mechanisms to prevent memory-related vulnerabilities.

Patching and Updates

Regularly update Gpac software to the latest versions available to ensure that security patches addressing this vulnerability are applied.