CVE-2021-32139 : Exploit Details and Defense Strategies

GPAC 1.0.1 is affected by a vulnerability that allows attackers to trigger a denial of service (NULL pointer dereference) by using a specially crafted file in the MP4Box command.

Understanding CVE-2021-32139

This section covers the details of the CVE-2021-32139 vulnerability.

What is CVE-2021-32139?

The vulnerability in the gf_isom_vp_config_get function in GPAC 1.0.1 enables attackers to execute a denial of service attack through a specific file within the MP4Box command.

The Impact of CVE-2021-32139

The impact of this CVE includes the potential for attackers to disrupt the service of affected systems through the exploitation of a NULL pointer dereference.

Technical Details of CVE-2021-32139

Explore the technical aspects of CVE-2021-32139 below.

Vulnerability Description

The flaw in the gf_isom_vp_config_get function in GPAC 1.0.1 can be exploited to cause a denial of service attack through a malicious file provided as input to the MP4Box command.

Affected Systems and Versions

GPAC 1.0.1 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

By manipulating a specifically crafted file in the MP4Box command, attackers can trigger a NULL pointer dereference, leading to a denial of service condition.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2021-32139 vulnerability in this section.

Immediate Steps to Take

Users are advised to update GPAC to a patched version to mitigate the risk of exploitation.

Long-Term Security Practices

Implement security best practices such as validating input data to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates and apply patches promptly to secure your systems.