CVE-2017-2958 : Security Advisory and Response

Adobe Acrobat Reader versions 15.020.20042 and earlier, 15.006.30244 and earlier, 11.0.18 and earlier have a vulnerability in the JavaScript engine that can lead to unauthorized use after free, potentially allowing arbitrary code execution.

Understanding CVE-2017-2958

This CVE entry pertains to a specific vulnerability in Adobe Acrobat Reader versions.

What is CVE-2017-2958?

The JavaScript engine in Adobe Acrobat Reader versions 15.020.20042 and earlier, 15.006.30244 and earlier, and 11.0.18 and earlier contains a vulnerability that can be exploited for unauthorized use after free. If successfully exploited, this could result in the execution of arbitrary code.

The Impact of CVE-2017-2958

Exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system, potentially leading to further compromise or unauthorized access.

Technical Details of CVE-2017-2958

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability lies in the JavaScript engine of Adobe Acrobat Reader, enabling unauthorized use after free, which could be leveraged for arbitrary code execution.

Affected Systems and Versions

Adobe Acrobat Reader 15.020.20042 and earlier
Adobe Acrobat Reader 15.006.30244 and earlier
Adobe Acrobat Reader 11.0.18 and earlier

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger the use after free condition in the JavaScript engine, leading to the execution of malicious code.

Mitigation and Prevention

Protecting systems from CVE-2017-2958 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Adobe Acrobat Reader to the latest version available from the official Adobe website.
Consider disabling JavaScript in the application if not required for essential functionality.
Implement security best practices to reduce the attack surface.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Conduct security assessments and audits to identify and mitigate potential risks.
Educate users on safe browsing habits and the importance of software updates.
Employ network security measures to detect and prevent exploit attempts.

Patching and Updates

Adobe has released patches to address this vulnerability. Ensure that all instances of Adobe Acrobat Reader are updated to the patched versions to mitigate the risk of exploitation.