chromium-browser: use after free in v8

A use after free in V8 in Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for Android allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page...

chromium-browser: csp referrer disclosure

Blink in Google Chrome prior to 55.0.2883.75 for Mac, Windows and Linux, and 55.0.2883.84 for Android incorrectly handled iframes, which allowed a remote attacker to bypass a no-referrer policy via a crafted HTML page...