CVE-2021-45053 : Security Advisory and Response

Adobe InCopy version 16.4 and earlier is affected by an out-of-bounds write vulnerability allowing arbitrary code execution in the context of the current user when a malicious file is opened.

Understanding CVE-2021-45053

Adobe InCopy JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

What is CVE-2021-45053?

This CVE refers to a vulnerability in Adobe InCopy versions <=16.4 that enables an attacker to execute arbitrary code by exploiting an out-of-bounds write issue.

The Impact of CVE-2021-45053

The vulnerability has a CVSS base score of 7.8, with high severity ratings for confidentiality, integrity, and availability impacts. It requires user interaction for exploitation, making it concerning for users.

Technical Details of CVE-2021-45053

Vulnerability Description

The vulnerability in Adobe InCopy allows an out-of-bounds write attack, potentially leading to remote code execution and compromising the user's system.

Affected Systems and Versions

Product: InCopy
Vendor: Adobe
Versions Affected: <=16.4, None

Exploitation Mechanism

To exploit the vulnerability, a malicious file needs to be opened by a victim, triggering the out-of-bounds write issue and allowing the attacker to execute arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update Adobe InCopy to the latest version to patch the vulnerability.
Avoid opening files from untrusted sources.

Long-Term Security Practices

Regularly update software to mitigate known vulnerabilities.
Educate users on safe file handling practices.

Patching and Updates

Ensure timely installation of software updates to address security vulnerabilities and enhance system protection.