Zero-Day Advisory

Fortinet Discovers Google Web Designer Memory Corruption Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Google Web Designer.

Google Web Designer is a program for Windows, Mac and Linux from Google for creating interactive HTML5 ads and other HTML5 content. It offers a GUI with common design tools, such as a Text tool that integrates with Google Web Fonts, a Shapes tool, a Pen tool, and 3D tools. The advertising feature set includes components to add Google Maps, YouTube videos and more, as well as automatically including the tracking code events for DoubleClick and AdMob.

A memory corruption vulnerability has been discovered in Google Web Designer application. The vulnerability is caused by any Google Web Designer proprietary file format which causes an out-of-bounds memory write. It could allow malicious users to create code execution scenarios.

Solutions

Users should apply the solution provided by Google.

Timeline

Fortinet reported the vulnerability to Google on December 30, 2016.

Google released patch for it on November 28, 2017.

Acknowledgement

This vulnerability was discovered by Kushal Arvind Shah of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.