CVE-2021-40764 : Exploit Details and Defense Strategies

Adobe Character Animator version 4.4 (and earlier) is affected by a memory corruption vulnerability when parsing a M4A file, potentially allowing arbitrary code execution. User interaction is required to exploit this vulnerability.

Understanding CVE-2021-40764

Adobe Character Animator is prone to a memory corruption vulnerability that can lead to arbitrary code execution.

What is CVE-2021-40764?

The vulnerability in Adobe Character Animator 4.4 (and earlier) could result in arbitrary code execution due to a memory corruption issue when processing M4A files. Attackers can execute malicious code in the user's context upon successful exploitation, requiring user interaction.

The Impact of CVE-2021-40764

The vulnerability has a CVSS base score of 7.8 (High severity) with high impacts on confidentiality, integrity, and availability. The attack vector is local, and no special privileges are required for exploitation.

Technical Details of CVE-2021-40764

Adobe Character Animator Vulnerability

Vulnerability Description

Type: Memory corruption
Risk: Arbitrary code execution
Trigger: Parsing M4A files

Affected Systems and Versions

Product: Adobe Character Animator (Preview 4)
Versions affected: 4.4 and earlier

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required

Mitigation and Prevention

Adobe's response to the CVE-2021-40764 vulnerability

Immediate Steps to Take

Update Adobe Character Animator to the latest version
Avoid opening or processing untrusted M4A files
Educate users about potential phishing attempts

Long-Term Security Practices

Regularly update software and apply security patches
Implement user training on recognizing phishing attempts
Monitor system activities for suspicious behavior

Patching and Updates

Adobe has released patches addressing this vulnerability
Check Adobe's official security advisory for detailed patching instructions