[Guy Harris <gharris@xxxxxxxxx>]

Matevz Pustisek wrote:

> I got the same problem and managed to isolate a sigle packet (see the 
> attached capture file) that causes crashing.

That's not necessarily the *same* problem - the assertion is in a 
routine called from another routine, with the latter routine called by a 
dissector, but that routine is called by many dissectors; the assertion 
checks whether one argument passed to that routine points to a valid 
value.  The crash Frank Maerz saw might have been in a different 
dissector than the one in which Ethereal and Tethereal crash in your 
dissector, even though it was in the same line of the same routine.

> I can open the file in tethereal:

...but not if you use the "-V" flag; it only shows up if a full 
dissection, rather than a dissection sufficient to generate the column 
values and build any state information, is done.

I've checked in a fix for the crash caused by your capture.