Hi: Design and Coding mistakes abound in just about every system out there.
Systems * Apple Safari with a macOS kernel escalation of privilege. In addition chained together six unique bugs starting with a JIT vulnerability and ending with TOCTOU/race condition to escape the sandbox and exec a root shell. * Windoze 10 Use-after-free (UAF) bug to escalate permissions to SYSTEM * Ubuntu local privilege escalation. Due to improper input validation bug in kernel, escalated privilege from standard user to root. * There are multiple UAF bugs in windows Enjoy this video https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results Be inspired to learn, experiment and believe in the power of free software to change the world. warm regards Saifi.

