Google has released a new version, 19·0·1084·52, of its Chrome browser, for all platforms: Windows, Linux, Mac OS X, and Chrome Frame. This new version fixes thirteen identified security flaws, nine of which Google rates as High severity, and two as Critical. Further details are in the release announcement.
Windows and Mac users should get the new version via the built-in update mechanism. Linux users should get the updated package from their distributions’ repositories, using their standard package maintenance tools. You can verify that your system has been updated by clicking on the tools menu (the little wrench), and then on “About Google Chrome”.