[Bro] NUL-related error messages

Peter Wurzinger pw at seclab.tuwien.ac.at
Wed Oct 29 11:02:32 PDT 2008


In my notice.log files i frequently find the following two error messages:

run-time error: string with embedded NUL
run-time error: string without NUL terminator

I cannot give specific information about what packets trigger these 
errors, but it seems that often it is NetBios. I am running Bro 1.4.

What could be the problem that causes the errors, and how could I avoid 
them? Do these errors have an impact on signature matching (or other Bro 


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