Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 1416] crash (stack smashing) on single DHCP packet

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http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1416


stephentfisher@xxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Comment #9 from stephentfisher@xxxxxxxxx  2007-05-26 00:46 GMT -------
I was able to reproduce the stack smashing crash after compiling Wireshark with
-fstack-protector-all on my Linux machine.  I have fixed the source of the
problem in SVN revision 21947
(http://anonsvn.wireshark.org/viewvc/viewvc.cgi?view=rev&revision=21947).

My backtrace actually showed dissect_docsis_cm_cap() as the last function
before the stack smashing check code executed instead of bootp_option()
(although bootp_option() calls dissect_docsis_cm_cap()), so please confirm for
me that this fixes the problem you're experiencing.

Your SuSE system must have -fstack-protector / -fstack-protector-all enabled by
default in gcc.  More information about this implementation can be found at
http://www.trl.ibm.com/projects/security/ssp/node4.html for those who are
curious.

Again, thanks for your bug report!


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