Security Advisory
CVE-2018-18500
9.8
CRITICAL
Vulnerability Description
A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
Published Date
February 5, 2019
Official Source
NIST NVD Advisory