CVE-2021-45061 Explained : Impact and Mitigation

Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Understanding CVE-2021-45061

Adobe Acrobat Reader DC versions 21.007.20099, 20.004.30017, and 17.011.30204 are affected by an out-of-bounds write vulnerability.

What is CVE-2021-45061?

Acrobat Reader DC versions are susceptible to an out-of-bounds write flaw.
Exploitation could lead to arbitrary code execution under the current user's context.
User interaction is required, where victims need to open a malicious file.

The Impact of CVE-2021-45061

CVSS Base Score: 7.8 (High Severity)
Attack Complexity: Low
Attack Vector: Local
Availability Impact: High
Confidentiality Impact: High
Integrity Impact: High
User Interaction: Required

Technical Details of CVE-2021-45061

Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Vulnerability

Vulnerability Description

Out-of-bounds write vulnerability in Adobe Acrobat Reader DC font parsing.

Affected Systems and Versions

Products: Adobe Acrobat Reader
Versions Affected: 21.007.20099, 20.004.30017, 17.011.30204, and unspecified prior

Exploitation Mechanism

Requires user interaction through opening a malicious file.

Mitigation and Prevention

To address CVE-2021-45061, take the following steps:

Immediate Steps to Take

Update Adobe Acrobat Reader to the latest version.
Exercise caution when opening files from unknown or untrusted sources.

Long-Term Security Practices

Regularly update software and security patches.
Implement security awareness training for users to recognize potential threats.

Patching and Updates

Adobe has released patches to address the vulnerability. Ensure timely installation of these updates.