CVE-2021-21837 : Vulnerability Insights and Analysis

GPAC Project on Advanced Content library v1.0.1 is prone to multiple exploitable integer overflow vulnerabilities. An attacker can exploit this issue by convincing a user to open a specially crafted MPEG-4 input, causing memory corruption.

Understanding CVE-2021-21837

This CVE involves integer overflow vulnerabilities in the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1.

What is CVE-2021-21837?

CVE-2021-21837 relates to unchecked arithmetic leading to heap-based buffer overflows in the GPAC Project on Advanced Content library v1.0.1.

The Impact of CVE-2021-21837

The vulnerability has a CVSS v3.0 base score of 8.8 (High), with high impacts on confidentiality, integrity, and availability. Exploitation requires user interaction and can result in memory corruption.

Technical Details of CVE-2021-21837

This section covers the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The CVE involves integer overflow issues in the MPEG-4 decoding function, leading to heap-based buffer overflows and memory corruption.

Affected Systems and Versions

The vulnerability affects GPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304 and GPAC Project Advanced Content v1.0.1.

Exploitation Mechanism

An attacker can exploit this vulnerability by manipulating a user into opening a specially crafted MPEG-4 input, triggering memory corruption.

Mitigation and Prevention

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

Immediate Steps to Take

Users should exercise caution when opening MPEG-4 files from untrusted sources. It is advisable to avoid interacting with potentially malicious content.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and maintaining awareness of emerging threats can enhance overall security posture.

Patching and Updates

Users are strongly advised to apply patches and updates provided by the vendor to address the identified vulnerabilities and enhance the security of the GPAC Project on Advanced Content library.