CVE-2021-40944 : Exploit Details and Defense Strategies

This CVE record highlights a Null pointer reference vulnerability in GPAC MP4Box 1.1.0, potentially leading to a denial of service.

Understanding CVE-2021-40944

This section will delve into the nature of the vulnerability and its potential impact.

What is CVE-2021-40944?

The CVE-2021-40944 vulnerability involves a Null pointer reference in the function gf_filter_pid_get_packet in src/filter_core/filter_pid.c:5394 in GPAC MP4Box 1.1.0, which could result in a denial of service (DOS) attack.

The Impact of CVE-2021-40944

The vulnerability could be exploited by malicious actors to cause a denial of service, disrupting the normal functioning of the affected system.

Technical Details of CVE-2021-40944

This section will provide more technical insights into the CVE-2021-40944 vulnerability.

Vulnerability Description

The issue occurs due to a Null pointer reference in a specific function within GPAC MP4Box, making the system susceptible to a denial of service attack.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Version: Not specified
Status: Affected

Exploitation Mechanism

The vulnerability can be exploited by leveraging the Null pointer reference in the said function to trigger a denial of service attack.

Mitigation and Prevention

Following are the steps recommended to mitigate and prevent the exploitation of CVE-2021-40944.

Immediate Steps to Take

Apply relevant security patches provided by the vendor.
Monitor GPAC MP4Box-related communications for any suspicious activity.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Implement strict access controls and least privilege principles.

Patching and Updates

Keep the software and associated systems up to date with the latest patches and updates to address known vulnerabilities.