CVE-2018-3835 : What You Need to Know

Version 2.2 of the PTEX application, known as Per Face Texture mapping, contains a vulnerability that allows for an exploitable out-of-bounds write. This vulnerability arises when reading a file without sufficient parameter verification, potentially leading to a buffer overflow and unauthorized code execution.

Understanding CVE-2018-3835

This CVE-2018-3835 vulnerability affects the Walt Disney Animation Studios PTEX application, with version 2.2 being specifically impacted.

What is CVE-2018-3835?

CVE-2018-3835 is an exploitable out-of-bounds write vulnerability in the PTEX application. It occurs due to inadequate parameter validation when reading a file, enabling a buffer overflow and potential execution of unauthorized code.

The Impact of CVE-2018-3835

The vulnerability has a CVSS v3.0 base score of 8.8, indicating a high severity level. Its impact includes high confidentiality, integrity, and availability impacts, with low attack complexity and network-based attack vector.

Technical Details of CVE-2018-3835

Version 2.2 of the PTEX application is susceptible to this vulnerability.

Vulnerability Description

The vulnerability allows for an exploitable out-of-bounds write when reading files without proper parameter verification, potentially leading to a buffer overflow and unauthorized code execution.

Affected Systems and Versions

Product: Walt Disney Animation Studios PTEX
Vendor: Talos
Version: 2.2

Exploitation Mechanism

The vulnerability arises from inadequate parameter validation during file reading, enabling a buffer overflow that can be exploited to execute unauthorized code.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of CVE-2018-3835.

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Implement proper input validation mechanisms to prevent buffer overflows.
Monitor and restrict network access to vulnerable systems.

Long-Term Security Practices

Conduct regular security assessments and audits to identify vulnerabilities.
Educate developers on secure coding practices to prevent similar issues in the future.

Patching and Updates

Stay informed about security advisories and updates from the vendor.
Regularly update and patch software to address known vulnerabilities.