Can Code composer catch null pointer de-reference?

I am not aware of any CCS specific functionality to catch a NULL point de-reference.

However, since the first peripheral is at address 0x100 you should be able to set a breakpoint on access to any memory in the range 0x0 - 0xff, which will be a sign of de-referencing a NULL pointer.

To do that see A.4 Break on Access of Invalid Memory  in "Advanced Debugging Using the Enhanced Emulation Module (EEM) with Code Composer Studio" and set the Range Start: 0x0 and Range End: 0x100

[The referenced document is written for CCS 6 and I haven't checked if the same functionality existed in CCS 5]