CVE-2021-40791 Explained : Impact and Mitigation

This CVE-2021-40791 article provides details about an out-of-bounds read vulnerability in Adobe Premiere Pro versions that could lead to memory disclosure.

Understanding CVE-2021-40791

This section delves into the specifics of CVE-2021-40791.

What is CVE-2021-40791?

Adobe Premiere Pro versions 22.0 and 15.4.2 are impacted by an out-of-bounds read vulnerability. This flaw could potentially expose sensitive memory and enable attackers to bypass certain mitigations, requiring user interaction by opening a malicious file.

The Impact of CVE-2021-40791

The vulnerability has a CVSS v3.1 base score of 5.5 (Medium severity) with high confidentiality impact. Attackers with local access could exploit this issue, compromising system integrity.

Technical Details of CVE-2021-40791

This section covers the technical aspects of CVE-2021-40791.

Vulnerability Description

The vulnerability is categorized as an Out-of-bounds Read (CWE-125) issue. It pertains to an internal JPEG file parsing flaw in Adobe Premiere Pro.

Affected Systems and Versions

Product: Premiere Pro
Vendor: Adobe
Affected Versions: 22.0 and 15.4.2 (and earlier)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
User Interaction: Required
Exploit Maturity: Not defined
Privileges Required: None
The exploitation process involves the victim opening a malicious file, triggering the vulnerability.

Mitigation and Prevention

Learn how to protect systems from CVE-2021-40791.

Immediate Steps to Take

Patch affected Adobe Premiere Pro versions immediately.
Avoid opening files from untrusted sources.

Long-Term Security Practices

Implement security awareness training to educate users about file safety.
Regularly update and monitor software for vulnerabilities.

Patching and Updates

Apply the latest security patches for Adobe Premiere Pro to mitigate the risk of exploitation.