CVE-2021-42738 : Security Advisory and Response

Adobe Prelude version 10.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious MXF file, potentially resulting in arbitrary code execution in the context of the current user. This vulnerability requires user interaction for exploitation.

Understanding CVE-2021-42738

Adobe Prelude MXF File Parsing Memory Corruption Arbitrary Code Execution

What is CVE-2021-42738?

Adobe Prelude version 10.1 and earlier are susceptible to a memory corruption flaw triggered by handling malicious MXF files, allowing attackers to execute arbitrary code within the user's context via specially crafted files.

The Impact of CVE-2021-42738

This vulnerability poses a HIGH impact threat on confidentiality, integrity, and availability. It requires no user privileges, but user interaction is essential for an exploit.

Technical Details of CVE-2021-42738

Vulnerability Description

Type: Memory corruption vulnerability
CWE ID: CWE-788 (Access of Memory Location After End of Buffer)

Affected Systems and Versions

Product: Adobe Prelude
Vendor: Adobe
Affected Versions: 10.1 and earlier

Exploitation Mechanism

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

Mitigation and Prevention

Given the severity of CVE-2021-42738, it is crucial to take immediate action to safeguard systems.

Immediate Steps to Take

Update Adobe Prelude to the latest version
Avoid opening suspicious or untrusted MXF files
Implement file extension restrictions for MXF files

Long-Term Security Practices

Educate users on safe file handling practices
Regularly update software and security patches

Patching and Updates

Apply security patches provided by Adobe promptly