CVE-2021-40784 : Exploit Details and Defense Strategies

Adobe Premiere Rush version 1.5.16 (and earlier) is affected by a memory corruption vulnerability when handling a malicious WAV file, potentially leading to remote code execution. This CVE was made public on December 14, 2021.

Understanding CVE-2021-40784

Adobe Premiere Rush is susceptible to a memory corruption issue due to unsafe processing of a specific type of file, potentially allowing attackers to execute arbitrary code on the user's system.

What is CVE-2021-40784?

Vulnerability Type: Memory Corruption
CVSS Base Score: 7.8 (High Severity)
Vector String: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

The Impact of CVE-2021-40784

This vulnerability requires user interaction to be exploited and could result in arbitrary code execution within the user's context, posing a high risk to confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2021-40784

Adobe Premiere Rush CVE-2021-40784 involves the following technical aspects:

Vulnerability Description

Identified as CWE-788: Access of Memory Location After End of Buffer
Triggered by the insecure handling of WAV files

Affected Systems and Versions

Product: Premiere Rush
Vendor: Adobe
Vulnerable Versions: <= 1.5.16

Exploitation Mechanism

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

Mitigation and Prevention

In response to CVE-2021-40784, consider the following steps:

Immediate Steps to Take

Update Adobe Premiere Rush to the latest version
Avoid opening untrusted WAV files
Exercise caution while interacting with external content

Long-Term Security Practices

Regularly update software and security patches
Educate users on safe file handling practices
Implement network and host-based intrusion detection systems

Patching and Updates

Adobe has likely released patches addressing this vulnerability
Stay informed about security updates and apply them promptly