Google on Tuesday released Chrome 16, which includes fixes for 15 security vulnerabilities, including six "high-risk" flaws, seven "medium" and two "low." As part of its bug bounty program, Google paid out $6,000 to researchers who reported holes fixed in the new version. The high-risk flaws relate to URL bar spoofing, "use-after-free" memory, an out-of-bounds write in the V8 JavaScript engine and a buffer overflow in PDF font handling. In addition, version 16, available for Windows, Mac OS X, and Linux, allows users to create multiple profiles on a single instance of Chrome.