CVE-2021-43021 Explained : Impact and Mitigation
Learn about CVE-2021-43021 affecting Adobe Premiere Rush. This memory corruption vulnerability allows arbitrary code execution via malicious EXR files. Take immediate steps to update and secure your systems.
Adobe Premiere Rush version 1.5.16 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious EXR file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.
Understanding CVE-2021-43021
What is CVE-2021-43021?
CVE-2021-43021 involves a memory corruption vulnerability in Adobe Premiere Rush versions 1.5.16 and earlier, which allows for remote code execution through a malicious EXR file.
The Impact of CVE-2021-43021
This vulnerability has a CVSS base score of 7.8 (High severity), with high impacts on confidentiality, integrity, and availability. It requires low attack complexity and user interaction.
Technical Details of CVE-2021-43021
Vulnerability Description
The vulnerability arises from the insecure handling of EXR files, leading to memory corruption and potential arbitrary code execution.
Affected Systems and Versions
- Adobe Premiere Rush version 1.5.16 and earlier are affected.
Exploitation Mechanism
- An attacker can exploit this vulnerability by convincing a user to open a malicious EXR file in Adobe Premiere Rush, triggering arbitrary code execution.
Mitigation and Prevention
Immediate Steps to Take
- Update Adobe Premiere Rush to the latest secure version.
- Avoid opening EXR files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and implement security patches promptly.
- Educate users about safe handling of files and email attachments.
Patching and Updates
- Adobe has released security updates to address this vulnerability. Apply the latest patches from Adobe for Premiere Rush.