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CVE-2021-21103 : Security Advisory and Response

Learn about CVE-2021-21103, a memory corruption vulnerability in Adobe Illustrator version 25.2 and earlier that could lead to information disclosure. Understand the impact, technical details, and mitigation strategies.

A memory corruption vulnerability in Adobe Illustrator version 25.2 and earlier has been identified, potentially leading to information disclosure.

Understanding CVE-2021-21103

This CVE pertains to a specific vulnerability in Adobe Illustrator that could allow an attacker to exploit a memory corruption issue by tricking a user into opening a crafted file.

What is CVE-2021-21103?

Adobe Illustrator version 25.2 (and earlier) is impacted by a memory corruption vulnerability triggered when parsing a specially crafted file. This flaw could enable an unauthenticated attacker to reveal sensitive memory data within the user's context, requiring victim interaction.

The Impact of CVE-2021-21103

The vulnerability poses a medium-level risk with a CVSS base score of 4.3. It holds the potential for low confidentiality impact with no integrity impact and user interaction required for exploitation.

Technical Details of CVE-2021-21103

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Adobe Illustrator involves a memory corruption issue during file parsing, which a malicious actor could exploit to expose sensitive memory information.

Affected Systems and Versions

Adobe Illustrator versions up to 25.2 are impacted by this vulnerability, requiring immediate attention to prevent exploitation.

Exploitation Mechanism

Exploiting this vulnerability entails convincing a user to open a specially crafted file, thereby triggering the memory corruption issue.

Mitigation and Prevention

Protecting systems from CVE-2021-21103 involves specific security measures and actions.

Immediate Steps to Take

Users are advised to update Adobe Illustrator to the latest version, apply patches, and exercise caution when opening files from untrusted sources.

Long-Term Security Practices

Implementing robust cybersecurity practices, such as regular software updates, security training, and threat monitoring, can help mitigate the risks posed by vulnerabilities like CVE-2021-21103.

Patching and Updates

Adobe has released security updates to address this vulnerability. Ensure timely installation of patches to safeguard systems against potential exploitation.

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