CVE-2017-8400 : What You Need to Know

SWFTools 0.9.2 has a vulnerability where heap data can be written out of bounds in the png_load() function in lib/png.c:755. Exploiting this vulnerability may result in a Denial of Service (DoS) or arbitrary code execution.

Understanding CVE-2017-8400

In SWFTools 0.9.2, an out-of-bounds write of heap data can occur in the function png_load() in lib/png.c:755. Attackers could exploit this issue for DoS, potentially leading to arbitrary code execution.

What is CVE-2017-8400?

This CVE refers to a vulnerability in SWFTools 0.9.2 that allows for out-of-bounds heap data write in the png_load() function, triggered by mishandling malformed PNG files.

The Impact of CVE-2017-8400

The exploitation of this vulnerability could lead to a Denial of Service (DoS) condition or enable attackers to execute arbitrary code on the affected system.

Technical Details of CVE-2017-8400

SWFTools 0.9.2 is susceptible to a specific vulnerability that can have severe consequences:

Vulnerability Description

Heap data can be written out of bounds in the png_load() function in lib/png.c:755.

Affected Systems and Versions

Product: SWFTools 0.9.2
Vendor: N/A
Version: N/A

Exploitation Mechanism

The issue arises when a malformed PNG file is mishandled by png2swf, triggering the vulnerability.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-8400:

Immediate Steps to Take

Update SWFTools to a patched version that addresses the vulnerability.
Avoid opening or processing untrusted or unknown PNG files.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories related to SWFTools and apply patches as soon as they are available.