Chinese Researchers Earn Another $20,000 for Chrome Sandbox Escape


Google informed Chrome users on Tuesday that an update for version 89 includes eight security fixes, including for six vulnerabilities reported by external researchers.

The highest reward, $20,000, was awarded to researchers Leecraso and Guang Gong of the 360 Alpha Lab at Qihoo 360. The issue was described by Google as a use-after-free in screen capture.

Leecraso told SecurityWeek that the vulnerability, tracked as CVE-2021-21194, can be exploited to escape the Chrome sandbox. If exploited in combination with a renderer bug, it can allow an attacker to remotely execute arbitrary code outside the Chrome sandbox on the targeted user’s device.