CVE-2021-43746 Explained : Impact and Mitigation

Adobe Premiere Rush versions 1.5.16 and earlier are susceptible to an uninitialized pointer vulnerability that enables remote attackers to access sensitive information. This article provides insights into the impact, technical details, and mitigation strategies for CVE-2021-43746.

Understanding CVE-2021-43746

Adobe Premiere Rush MP4 File Parsing Uninitialized Variable Information Disclosure Vulnerability

What is CVE-2021-43746?

Adobe Premiere Rush versions 1.5.16 and earlier contain a vulnerability that allows attackers to reveal sensitive data on affected systems through an uninitialized pointer. Attackers need the target to interact with a malicious page or file for the exploitation. The issue stems from improper memory initialization during MP4 file parsing.

The Impact of CVE-2021-43746

The CVSS score for this vulnerability is 5.5 out of 10, indicating a medium severity with high confidentiality impact. The attack complexity is low, and user interaction is required for exploitation.

Technical Details of CVE-2021-43746

Vulnerability Description

The vulnerability in Adobe Premiere Rush arises from an uninitialized pointer, facilitating the disclosure of sensitive data. Attackers can exploit the flaw by manipulating MP4 files.

Affected Systems and Versions

Product: Premiere Rush
Vendor: Adobe
Versions Affected: 1.5.16 (and earlier), unspecified custom versions

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required

Mitigation and Prevention

Adobe has provided guidance to mitigate the risks associated with CVE-2021-43746.

Immediate Steps to Take

Update Adobe Premiere Rush to the latest version.
Avoid visiting untrusted websites or opening suspicious files.

Long-Term Security Practices

Regularly update software and apply security patches.
Educate users on safe browsing habits and file handling.

Patching and Updates

Follow Adobe's security advisory and install patches promptly to address the vulnerability.