CVE-2021-40766 Explained : Impact and Mitigation

Adobe Character Animator version 4.4 and earlier are affected by an out-of-bounds read vulnerability, potentially leading to memory disclosure. This vulnerability could allow an attacker to bypass mitigations like ASLR, requiring user interaction to exploit.

Understanding CVE-2021-40766

Adobe Character Animator SVG File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

What is CVE-2021-40766?

Adobe Character Animator versions <=4.4 are susceptible to an out-of-bounds read flaw, which may expose sensitive memory. Attackers could exploit this by luring victims into opening a malicious file.

The Impact of CVE-2021-40766

The CVSS base score for this vulnerability is 3.3 (Low severity). The attack complexity is Low, user interaction is required, and it affects local systems with no integrity impact.

Technical Details of CVE-2021-40766

Adobe Character Animator versions <=4.4

Vulnerability Description

Type: Out-of-bounds Read (CWE-125)
This flaw can potentially disclose sensitive memory

Affected Systems and Versions

Product: Adobe Character Animator (Preview 4)
Vendor: Adobe
Versions: <=4.4

Exploitation Mechanism

Attack Vector: Local
Privileges Required: None

Mitigation and Prevention

Immediate Steps to Take

Update Adobe Character Animator to the latest version
Be cautious when opening files from unknown sources

Long-Term Security Practices

Regularly update software and security patches
Conduct security training to recognize and avoid suspicious files

Patching and Updates

Adobe has released security updates to address this vulnerability