Stack Clash is a local privilege escalation flaw in Linux, BSD, Solaris and other open source systems that allows an attacker to execute code as root. Experts warn of the possibility to run arbitrary code with the highest privileges. Security patches have been released today for many Linux, OpenBSD, NetBS, NetBSD, FreeBSD or i386 or amd64 hardware should be updated soon. The vulnerability affects the memory management of several OSs, it can be exploited by attackers to corrupt memory and execute arbitrary code.”]
Source: http://securityaffairs.co/wordpress/60248/hacking/stack-clash-vulnerability.html