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CVE-2021-21092 : Vulnerability Insights and Analysis

Learn about CVE-2021-21092, a memory corruption vulnerability in Adobe Bridge versions 10.1.1 and 11.0.1, allowing arbitrary code execution. Understand the impact, technical details, and mitigation steps.

Adobe Bridge versions 10.1.1 and 11.0.1 are susceptible to a memory corruption flaw while processing a malicious file. An attacker could exploit this to execute arbitrary code, requiring user interaction.

Understanding CVE-2021-21092

CVE-2021-21092 is a memory corruption vulnerability in Adobe Bridge that could allow an unauthenticated attacker to execute arbitrary code by tricking a user into opening a specially crafted file.

What is CVE-2021-21092?

Adobe Bridge versions 10.1.1 (and earlier) and 11.0.1 (and earlier) are affected by a memory corruption vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction where a victim must open a malicious file.

The Impact of CVE-2021-21092

The vulnerability has a CVSS base score of 7.8, indicating a high severity issue. It has a low attack complexity and requires no privileges. However, it could result in high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2021-21092

This vulnerability is classified under the CWE-788 category, representing the access of memory location after the end of a buffer. It affects Adobe Bridge versions 10.1.1 and 11.0.1.

Vulnerability Description

The vulnerability in Adobe Bridge allows attackers to corrupt memory and execute arbitrary code by manipulating specially crafted files, leading to potential unauthorized access or system compromise.

Affected Systems and Versions

Adobe Bridge versions 10.1.1 (and earlier) and 11.0.1 (and earlier) are confirmed to be affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability requires an unauthenticated attacker to entice a user into opening a malicious file, leveraging the memory corruption issue to execute arbitrary code.

Mitigation and Prevention

To address CVE-2021-21092, users are advised to take immediate steps and adopt long-term security practices to mitigate risks associated with this vulnerability.

Immediate Steps to Take

Users should refrain from opening untrusted or suspicious files, especially from unknown sources, to prevent the execution of malicious code that exploits this vulnerability.

Long-Term Security Practices

Implementing robust security measures, such as keeping software up to date, utilizing security tools, and educating users about safe file handling practices, can help prevent similar vulnerabilities in the future.

Patching and Updates

Adobe has likely released patches or updates to address this vulnerability. Users are strongly recommended to apply the latest security updates provided by Adobe for Adobe Bridge to safeguard against potential exploitation.

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