A race condition is present in the crash generation server used to generate data for the crash reporter. This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. *Note: this vulnerability only affects Windows. Other operating systems are unaffected.* External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9818
Acknowledgments: Name: the Mozilla project Upstream: Thomas Imbert