This indicates an attack attempt against a Buffer Overflow vulnerability in the WebGL component of Google Chrome
The vulnerability is due to an error when the vulnerable software attempts to handle maliciously crafted web page. An attacker can exploit this by tricking a user into visiting a malicious webpage and execute arbitrary code within the context of the application.
Google Chrome prior to 61.0.3163.79
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.