CVE-2021-39824 : Exploit Details and Defense Strategies

Adobe Premiere Elements png Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution

Understanding CVE-2021-39824

Adobe Premiere Elements version 2021.2235820 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious png file, potentially resulting in arbitrary code execution in the context of the current user.

What is CVE-2021-39824?

The vulnerability in Adobe Premiere Elements can be exploited with user interaction, allowing attackers to execute arbitrary code on the affected system.

The Impact of CVE-2021-39824

The vulnerability's CVSS base score is 7.8, categorizing it as high severity with impacts on confidentiality, integrity, and availability. It requires low attack complexity and no special privileges.

Technical Details of CVE-2021-39824

Adobe Premiere Elements png Memory Corruption Vulnerability

Vulnerability Description

Type: Memory corruption (CWE-788)
Attack Vector: Local
User Interaction: Required
Scope: Unchanged

Affected Systems and Versions

Product: Adobe Premiere Elements
Vendor: Adobe
Affected Versions: Premiere <= 2021.2235820, None

Exploitation Mechanism

The vulnerability arises due to the insecure handling of a malicious png file within Adobe Premiere Elements, leading to memory corruption and potential code execution.

Mitigation and Prevention

Immediate action is crucial to safeguard systems from this vulnerability.

Immediate Steps to Take

Apply the vendor-provided patches as soon as they are available
Avoid opening untrusted png files
Educate users on safe handling of files

Long-Term Security Practices

Regularly update Adobe Premiere Elements
Implement security best practices for file handling

Patching and Updates

Ensure the timely installation of security patches and updates provided by Adobe to mitigate the vulnerability.