Chromium, Google Chrome: Heap buffer overflow

Background

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

Google Chrome is one fast, simple, and secure browser for all your devices.

Description

A buffer overflow has been discovered in Chromium and Google Chrome’s SwiftShader component.

Impact

A remote attacker, by enticing a user to visit a specially crafted website, could execute arbitrary code with the privileges of the process.

Workaround

There is no known workaround at this time.

Resolution

All Chromium users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=www-client/chromium-84.0.4147.135"

All Google Chrome users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=www-client/google-chrome-84.0.4147.135"