Bugs Gone Wild: Container (Stack) Clash and CVE-2017-1000253

This report explains the Stack Clash vulnerability class and details CVE-2017-1000253, showing how improper memory mapping and guard-page circumvention can enable local privilege escalation on affected Linux systems; it includes historical context, technical explanation of guard-page bypass techniques, Qualys PoC references, and a container-based demonstration plus remediation guidance (patching, removing SUID binaries, minimizing container privileges).