Security Vulnerabilities fixed in Firefox ESR 68.8 — Mozilla

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash.
The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape.Note: this issue only affects Firefox on Windows operating systems.
The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape.Note: this issue only affects Firefox on Windows operating systems.
A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash.
The ‘Copy as cURL’ feature of Devtools’ network tab did not properly escape the HTTP POST data of a request, which can be controlled by the website. If a user used the ‘Copy as cURL’ feature and pasted the command into a terminal, it could have resulted in the disclosure of local files.
The ‘Copy as cURL’ feature of Devtools’ network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the ‘Copy as cURL’ feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution.Note: this issue only affects Firefox on Windows operating systems.
Mozilla developers and community members Alexandru Michis, Jason Kratzer, philipp, Ted Campbell, Bas Schouten, André Bargull, and Karl Tomlinson reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 arbitrary code.