CVE-2017-7757: Mozilla: Use-after-free in IndexedDB (MFSA 2017-16)

Severity: Critical

CVSS Score: 9.8

A use-after-free vulnerability in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.