CVE-2021-42265 : What You Need to Know

Adobe Premiere Pro MP4 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability.

Understanding CVE-2021-42265

Adobe Premiere Pro versions 22.0 and 15.4.2 (and earlier) are affected by an out-of-bounds read vulnerability that could result in the exposure of sensitive memory. An attacker could exploit this issue to bypass mitigations like ASLR with user interaction required to open a malicious file.

What is CVE-2021-42265?

The vulnerability presents a risk of information disclosure due to improper handling of MP4 files in Adobe Premiere Pro versions, potentially leading to memory exposure.

The Impact of CVE-2021-42265

Medium severity vulnerability with a CVSS base score of 5.5
High confidentiality impact
Exploitation requires user interaction
Allows attackers to read sensitive memory and bypass security mitigations

Technical Details of CVE-2021-42265

Adobe Premiere Pro Out-Of-Bounds Read Vulnerability

Vulnerability Description

The vulnerability allows attackers to read sensitive memory content by exploiting improper handling of MP4 files in Adobe Premiere Pro versions.

Affected Systems and Versions

Adobe Premiere Pro versions 22.0 and 15.4.2 (and earlier)

Exploitation Mechanism

Attackers can exploit this vulnerability by persuading a user to open a specially crafted malicious file in Adobe Premiere Pro.

Mitigation and Prevention

Immediate Steps to Take:

Update Adobe Premiere Pro to the latest version
Avoid opening files from untrusted or unknown sources
Implement security awareness training for users

Long-Term Security Practices:

Regularly update software and apply security patches
Employ network and endpoint security solutions to detect and prevent attacks
Enable security features like sandboxing and data execution prevention (DEP)
Monitor security advisories from Adobe for future vulnerabilities

Patching and Updates

Ensure Adobe Premiere Pro is regularly updated to the latest version to mitigate the vulnerability.