February 2018
Intermediate to advanced
396 pages
9h 38m
English
Content preview from Advanced Infrastructure Penetration Testing
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
NULL pointer dereference
NULL pointer dereferences are availability exploits. Generally, they are caused by a NULL pointer error, and it results a NullPointerException. This exception is raised when a pointer, which is a programming object that refers to an address with value of NULL, is pointing to a valid memory space. To avoid this type of attack, you just need to evoke an exception handler: