CVE-2017-11256 Explained : Impact and Mitigation

Adobe Acrobat Reader versions 2017.009.20058 and earlier, 2017.008.30051 and earlier, 2015.006.30306 and earlier, and 11.0.20 and earlier are affected by a critical vulnerability that could allow arbitrary code execution.

Understanding CVE-2017-11256

This CVE identifies a specific vulnerability in Adobe Acrobat Reader that could be exploited to execute arbitrary code.

What is CVE-2017-11256?

A vulnerability exists in Adobe Acrobat Reader versions 2017.009.20058 and older, 2017.008.30051 and older, 2015.006.30306 and older, and 11.0.20 and older. This vulnerability occurs when generating content using the XFA layout engine, which allows for potential arbitrary code execution if exploited successfully.

The Impact of CVE-2017-11256

The vulnerability could lead to arbitrary code execution, posing a significant security risk to systems running the affected versions of Adobe Acrobat Reader.

Technical Details of CVE-2017-11256

Adobe Acrobat Reader is susceptible to a critical vulnerability that could be exploited by attackers.

Vulnerability Description

The vulnerability is classified as a 'Use After Free' issue, which could be leveraged by attackers to execute arbitrary code.

Affected Systems and Versions

Adobe Acrobat Reader 2017.009.20058 and earlier
Adobe Acrobat Reader 2017.008.30051 and earlier
Adobe Acrobat Reader 2015.006.30306 and earlier
Adobe Acrobat Reader 11.0.20 and earlier

Exploitation Mechanism

The vulnerability arises when generating content using the XFA layout engine, providing an opportunity for attackers to execute arbitrary code.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update Adobe Acrobat Reader to the latest version to patch the vulnerability.
Exercise caution when opening PDF files from untrusted sources.
Implement security best practices to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly update software and applications to ensure the latest security patches are in place.
Educate users on safe browsing habits and the importance of software updates.

Patching and Updates

Adobe has released patches to address the vulnerability in affected versions of Acrobat Reader. Ensure that all systems are updated with the latest security fixes.