Mozilla: Use-after-free in worker destruction

When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird 68.3, Firefox ESR 68.3, and Firefox 71...

Security Vulnerabilities fixed in - Firefox 71 — Mozilla

Improper refcounting of soft token session objects could cause a use-after-free and crash likely limited to a denial of service. When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. When setting a thread name on Windo...