CVE-2023-21590 : What You Need to Know

This CVE article discusses the Adobe InDesign Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability.

Understanding CVE-2023-21590

This section provides insights into the nature of CVE-2023-21590.

What is CVE-2023-21590?

CVE-2023-21590 is an out-of-bounds write vulnerability affecting Adobe InDesign versions 18.0 and earlier, as well as 17.4 and earlier. This vulnerability could potentially lead to arbitrary code execution within the current user's context. Exploiting this issue requires user interaction, as the victim must open a malicious file.

The Impact of CVE-2023-21590

The impact of CVE-2023-21590 is significant as a successful exploit could result in the execution of arbitrary code, potentially compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-21590

This section delves into the technical aspects of CVE-2023-21590.

Vulnerability Description

The vulnerability in Adobe InDesign is classified as an out-of-bounds write (CWE-787), allowing attackers to overwrite memory locations outside the bounds of allocated memory, leading to potential code execution.

Affected Systems and Versions

Adobe InDesign versions 18.0 and earlier, as well as 17.4 and earlier, are confirmed to be affected by CVE-2023-21590, exposing users of these versions to the identified vulnerability.

Exploitation Mechanism

To exploit CVE-2023-21590, an attacker would need to craft a malicious file and entice a user to open it, triggering the out-of-bounds write operation and potentially enabling remote code execution.

Mitigation and Prevention

In light of CVE-2023-21590, it is essential to take proactive measures to mitigate the associated risks and prevent any potential exploitation.

Immediate Steps to Take

Users are advised to update Adobe InDesign to a secure version as soon as a patch becomes available. Additionally, caution should be exercised when opening files from unknown or untrusted sources to prevent exploitation.

Long-Term Security Practices

Implementing robust security practices, such as regular software updates, security awareness training for users, and maintaining strong access controls, can help enhance the overall security posture of systems and mitigate future vulnerabilities.

Patching and Updates

Adobe has likely released a security update to address CVE-2023-21590. Users are urged to promptly apply the provided patch to safeguard their systems against potential exploit attempts.