CVE-2021-34303 : Security Advisory and Response

A vulnerability has been identified in JT2Go and Teamcenter Visualization software versions prior to V13.2. The issue lies in the Tiff_Loader.dll library within the applications, where user-supplied data is not properly validated when parsing TIFF files. This could lead to an out-of-bounds read past the allocated buffer, potentially allowing an attacker to leak information within the current process.

Understanding CVE-2021-34303

This CVE affects Siemens' JT2Go and Teamcenter Visualization software versions prior to V13.2.

What is CVE-2021-34303?

CVE-2021-34303 is a vulnerability present in JT2Go and Teamcenter Visualization software versions prior to V13.2. The flaw arises due to improper validation of user-supplied data in the Tiff_Loader.dll library when parsing TIFF files.

The Impact of CVE-2021-34303

The vulnerability could be exploited by an attacker to perform an out-of-bounds read beyond the allocated buffer, potentially leading to information leakage within the current process.

Technical Details of CVE-2021-34303

The technical details of this CVE include:

Vulnerability Description

The Tiff_Loader.dll library in JT2Go and Teamcenter Visualization applications lacks proper validation of user-supplied data during TIFF file parsing.

Affected Systems and Versions

All versions of JT2Go and Teamcenter Visualization prior to V13.2 are affected by this vulnerability.

Exploitation Mechanism

An attacker could exploit this vulnerability to conduct an out-of-bounds read past the end of an allocated buffer, potentially leading to information disclosure within the current process.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-34303, consider the following:

Immediate Steps to Take

Siemens users are advised to update JT2Go and Teamcenter Visualization to version V13.2 or higher.
Monitor official security advisories from Siemens for patch releases and apply them promptly.

Long-Term Security Practices

Regularly update and patch software to the latest versions to address security vulnerabilities.
Implement robust security measures such as network segmentation and access controls to reduce the attack surface.

Patching and Updates

Stay informed about security updates and patches provided by Siemens for JT2Go and Teamcenter Visualization to address CVE-2021-34303.