CVE 2017-5046
V8 in Google Chrome prior to 57.0.2987.98 for Mac, Windows, and Linux and 57.0.2987.108 for Android had insufficient policy enforcement, which allowed a remote attacker to spoof the location object via a crafted HTML page, related to Blink information disclosure.
See the 
CVE page on Mitre.org
for more details.
