Security Advisory
CVE-2017-5402
9.8
CRITICAL
Vulnerability Description
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
Published Date
June 11, 2018
Official Source
NIST NVD Advisory