Mozilla Firefox 92, Mozilla Firefox ESR 78.14, Mozilla Firefox ESR 91.1, Mozilla Thunderbird 78.14, Mozilla Thunderbird 91.1: Mozilla developers Gabriele Svelto and Tyson Smith reported memory safety bugs present in Firefox 91 and Firefox ESR 78.14. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrar ...