I'm recently read a paper called Exploiting the Hard-Working DWARF on Hackito Ergo Sum 2011. It contains the phrase "not a one-stop memory corruption". What is that?
It's not an exact term, but basically means something like directly overwriting a bookkeeping datastructure, such as the internal bookkeeping of malloc. "Not a one-stop memory corruption" would be an indirect corruption. This corruption will then cause a later innocent operation to corrupt memory.
In this particular case, the indirect corruption causes the DWARF exception handling code to corrupt memory.