CVE-2021-45067 : Vulnerability Insights and Analysis

Adobe Acrobat Reader DC versions 21.007.20099 and earlier, 20.004.30017 and earlier, and 17.011.30204 and earlier are affected by an Access of Memory Location After End of Buffer vulnerability, potentially leading to disclosure of sensitive memory. This CVE was made public on January 11, 2022, by Adobe.

Understanding CVE-2021-45067

This CVE involves a memory corruption issue in Adobe Acrobat Reader that could result in information disclosure.

What is CVE-2021-45067?

The vulnerability in Adobe Acrobat Reader DC versions allows an attacker to exploit memory location after the buffer's end, potentially exposing sensitive information.

The Impact of CVE-2021-45067

Attack Complexity: Low
Attack Vector: Local
High Confidentiality Impact
User Interaction Required
Base Score: 5.5 (Medium Severity)

Technical Details of CVE-2021-45067

Adobe Acrobat Reader DC versions are susceptible to the following:

Vulnerability Description

The vulnerability allows an attacker to access memory beyond the buffer's end, leading to potential information disclosure.

Affected Systems and Versions

Adobe Acrobat Reader DC version 21.007.20099 and earlier
Adobe Acrobat Reader DC version 20.004.30017 and earlier
Adobe Acrobat Reader DC version 17.011.30204 and earlier

Exploitation Mechanism

Exploitation necessitates user interaction where a victim unknowingly opens a malicious file.

Mitigation and Prevention

To address CVE-2021-45067, consider the following:

Immediate Steps to Take

Update Adobe Acrobat Reader to the latest version
Be cautious when opening files from untrusted sources
Implement security awareness training

Long-Term Security Practices

Regularly update software and security patches
Use endpoint protection solutions
Employ network monitoring and segmentation

Patching and Updates

Adobe has released patches for the affected versions to remediate the vulnerability.