CVE-2021-44926 Explained : Impact and Mitigation

A null pointer dereference vulnerability exists in gpac 1.1.0-DEV in the gf_node_get_tag function, leading to a segmentation fault and application crash.

Understanding CVE-2021-44926

This CVE involves a null pointer dereference vulnerability in gpac 1.1.0-DEV.

What is CVE-2021-44926?

The vulnerability in gpac 1.1.0-DEV in the gf_node_get_tag function allows for a null pointer dereference, resulting in a segmentation fault and the subsequent crashing of the application.

The Impact of CVE-2021-44926

The presence of this vulnerability could potentially be exploited by attackers to cause a denial of service (DoS) by crashing the application.

Technical Details of CVE-2021-44926

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability occurs in gpac 1.1.0-DEV due to a null pointer dereference in the gf_node_get_tag function, triggering a segmentation fault.

Affected Systems and Versions

Affected Version: gpac 1.1.0-DEV

Exploitation Mechanism

Attackers can exploit this vulnerability by providing crafted input, leading to the application accessing a null pointer and eventually crashing.

Mitigation and Prevention

Protect your systems against CVE-2021-44926 with these measures.

Immediate Steps to Take

Apply the latest patches or updates from the provider.
Monitor security advisories for any upcoming fixes related to gpac.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Implement secure coding practices to prevent null pointer dereference vulnerabilities.

Patching and Updates

Ensure that you regularly update gpac to the latest version containing fixes for this vulnerability.