CVE-2021-26825 : What You Need to Know
Learn about CVE-2021-26825, an integer overflow vulnerability in Godot Engine up to v3.2 triggered by loading malicious .TGA image files, enabling code execution and system crashes.
An integer overflow vulnerability exists in Godot Engine up to v3.2 that can be exploited when loading specially crafted .TGA image files. This vulnerability can lead to a dynamic stack buffer overflow, enabling attackers to execute code and potentially crash the system.
Understanding CVE-2021-26825
This section provides an in-depth look into the impact and technical details of the CVE-2021-26825 vulnerability.
What is CVE-2021-26825?
CVE-2021-26825 is an integer overflow vulnerability present in the ImageLoaderTGA::load_image() function of Godot Engine up to version 3.2. The issue arises when processing maliciously crafted .TGA image files, which triggers a buffer overflow.
The Impact of CVE-2021-26825
The exploitation of this vulnerability can have severe consequences. Depending on the application’s context, it can be leveraged for both local and remote attacks, allowing threat actors to execute arbitrary code and potentially crash the affected system.
Technical Details of CVE-2021-26825
Below are specific technical details regarding the CVE-2021-26825 vulnerability.
Vulnerability Description
The bug occurs due to an integer overflow in the calculation of buffer size, leading to a dynamic stack buffer overflow that can be triggered by loading malicious .TGA image files.
Affected Systems and Versions
Godot Engine versions up to v3.2 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by tricking a user into opening a specially crafted .TGA image file, which triggers the buffer overflow.
Mitigation and Prevention
To safeguard systems from CVE-2021-26825, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
Users should update Godot Engine to a patched version and avoid opening untrusted .TGA image files until the patch is applied.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security audits, and keeping software up to date can help prevent similar vulnerabilities.
Patching and Updates
Developers should stay vigilant for security updates released by Godot Engine and promptly apply patches to address the CVE-2021-26825 vulnerability.