CVE-2017-16381 Explained : Impact and Mitigation

Adobe Acrobat and Reader versions 2017.012.20098 and earlier, 2017.011.30066 and earlier, 2015.006.30355 and earlier, and 11.0.22 and earlier are affected by a vulnerability due to incorrect length values when processing TIFF files in XPS documents.

Understanding CVE-2017-16381

This CVE identifies a buffer access issue in Adobe Acrobat and Reader versions, allowing attackers to execute arbitrary code.

What is CVE-2017-16381?

The vulnerability stems from processing TIFF files within XPS documents with incorrect length values, leading to buffer access problems.

The Impact of CVE-2017-16381

Exploiting this flaw enables attackers to execute arbitrary code by manipulating TIFF images to control accessible memory.

Technical Details of CVE-2017-16381

Adobe Acrobat and Reader versions are susceptible to buffer access issues due to incorrect length values when handling TIFF files.

Vulnerability Description

The vulnerability arises from a discrepancy between allocated buffer size and permitted access, allowing attackers to execute arbitrary code.

Affected Systems and Versions

Adobe Acrobat Reader 2017.012.20098 and earlier
Adobe Acrobat Reader 2017.011.30066 and earlier
Adobe Acrobat Reader 2015.006.30355 and earlier
Adobe Acrobat Reader 11.0.22 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by providing manipulated TIFF images to control accessible memory and execute arbitrary code.

Mitigation and Prevention

To address CVE-2017-16381, follow these steps:

Immediate Steps to Take

Update Adobe Acrobat and Reader to the latest patched versions.
Be cautious when opening TIFF files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement network segmentation to limit the impact of potential attacks.
Educate users on safe browsing habits and the risks associated with opening unknown files.

Patching and Updates

Ensure timely installation of security updates and patches provided by Adobe for Acrobat and Reader.