CVE-2019-8191 Explained : Impact and Mitigation

Adobe Acrobat and Reader versions 2019.012.20040 and earlier, 2017.011.30148 and earlier, and 2015.006.30503 and earlier have an out-of-bounds write vulnerability that could lead to arbitrary code execution.

Understanding CVE-2019-8191

This CVE pertains to a vulnerability in earlier versions of Adobe Acrobat and Reader that allows for an out-of-bounds write, potentially resulting in the execution of arbitrary code.

What is CVE-2019-8191?

CVE-2019-8191 is a security vulnerability found in Adobe Acrobat and Reader versions 2019.012.20040 and earlier, 2017.011.30148 and earlier, and 2015.006.30503 and earlier. It enables attackers to perform an out-of-bounds write, which can be exploited to execute arbitrary code on the affected system.

The Impact of CVE-2019-8191

Exploiting this vulnerability successfully may lead to the execution of arbitrary code, posing a significant security risk to users of the affected Adobe Acrobat and Reader versions.

Technical Details of CVE-2019-8191

Vulnerability Description

The vulnerability in Adobe Acrobat and Reader versions mentioned allows for an out-of-bounds write, which can be leveraged by attackers to execute arbitrary code.

Affected Systems and Versions

Adobe Acrobat and Reader versions 2019.012.20040 and earlier
Adobe Acrobat and Reader versions 2017.011.30148 and earlier
Adobe Acrobat and Reader versions 2015.006.30503 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious file or document and tricking a user into opening it, triggering the out-of-bounds write and potentially executing arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update Adobe Acrobat and Reader to the latest version to patch the vulnerability.
Be cautious when opening files from unknown or untrusted sources.

Long-Term Security Practices

Regularly update software and applications to ensure the latest security patches are in place.
Implement security best practices such as using strong passwords and enabling firewalls.

Patching and Updates

It is crucial to apply the latest updates and patches provided by Adobe for Acrobat and Reader to mitigate the risk associated with CVE-2019-8191.