CVE-2021-21105 : What You Need to Know

Adobe Illustrator version 25.2 and earlier are impacted by a memory corruption vulnerability. An attacker could exploit this flaw to achieve remote code execution, requiring user interaction to open a malicious file.

Understanding CVE-2021-21105

This CVE discloses a memory corruption vulnerability in Adobe Illustrator versions up to 25.2 that could lead to remote code execution.

What is CVE-2021-21105?

Adobe Illustrator version 25.2 (and earlier) is affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve remote code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

The Impact of CVE-2021-21105

The vulnerability has a CVSS base score of 8.8, indicating a high severity issue. With low attack complexity and network access required, an attacker could compromise confidentiality, integrity, and availability.

Technical Details of CVE-2021-21105

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability stems from a memory corruption issue in how Adobe Illustrator handles specific files, enabling an attacker to execute arbitrary code.

Affected Systems and Versions

Adobe Illustrator version 25.2, and possibly earlier versions, are susceptible to this memory corruption vulnerability.

Exploitation Mechanism

A remote attacker can exploit this vulnerability by enticing a user to open a malicious file, triggering the memory corruption and executing remote code.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2021-21105.

Immediate Steps to Take

Users should promptly update Adobe Illustrator to the latest version to apply necessary security patches and protect against this vulnerability.

Long-Term Security Practices

Implementing strong file validation checks and user awareness training on safe file handling practices can reduce the risk of exploitation.

Patching and Updates

Regularly apply security updates provided by Adobe for Illustrator to address known vulnerabilities and enhance system security.