In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.Referenceshttps://www.exploit-db.com/exploits/42277/https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txthttps://www.exploit-db.com/exploits/42278/
