Blink, as used in Google Chrome before 50.0.2661.94, mishandles assertions in the WTF::BitArray and WTF::double_conversion::Vector classes, which allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via a crafted web site.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.