CVE-2021-31258 : Security Advisory and Response

The gf_isom_set_extraction_slc function in GPAC 1.0.1 has been identified with CVE-2021-31258, allowing attackers to exploit a denial of service vulnerability by using a crafted file in the MP4Box command.

Understanding CVE-2021-31258

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-31258.

What is CVE-2021-31258?

The CVE-2021-31258 vulnerability is associated with the gf_isom_set_extraction_slc function in GPAC 1.0.1, enabling malicious actors to trigger a denial of service via a specific file manipulation in the MP4Box command.

The Impact of CVE-2021-31258

Exploiting this vulnerability could result in a NULL pointer dereference, leading to a denial of service condition for the affected system.

Technical Details of CVE-2021-31258

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

Vulnerability Description

The gf_isom_set_extraction_slc function in GPAC 1.0.1 is susceptible to a denial of service attack due to improper handling of crafted files in the MP4Box command, resulting in a NULL pointer dereference.

Affected Systems and Versions

The vulnerability impacts GPAC 1.0.1, allowing threat actors to target systems leveraging this specific version.

Exploitation Mechanism

By manipulating a specially crafted file in the MP4Box command, attackers can exploit the vulnerability to trigger a denial of service condition on the target system.

Mitigation and Prevention

Following best practices to mitigate the risk posed by CVE-2021-31258 is essential to enhance cybersecurity posture.

Immediate Steps to Take

Users are advised to apply relevant patches and updates promptly to address the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implementing robust security measures, such as regular security audits, network monitoring, and access control mechanisms, can bolster defense against similar security risks.

Patching and Updates

Vendor-supplied patches should be applied as soon as they are available to secure the affected systems.