RE: kernel panic [linux 2.2.19-7] on UDP scan CP4.1-SP5

From: Yanek Korff (yanekat_private)
Date: Wed Nov 14 2001 - 11:30:31 PST

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    > Meaning it crashes?  Seems strange, you'd think Checkpoint would have
    > tried a UDP packet before they shipped...
    > 
    > Can anyone else confirm the results?
    Indeed, I'd love if someone could do more testing.  I've blown away my RH7
    install, and am working on 6.2 right now -- bad kernel (Default).  So far no
    remote udp crashes.  Haven't done much configuration yet, though.
    
    > > If I run nslookup on nmap_source, set my server to 
    > fw_under_test, and
    > > attempt to resolve something (even though fw_under_test is 
    > not running a
    > > nameserver), the fw_under_test does not crash.  It merely 
    > replies with udp
    > > port unreachable and stays up.
    > 
    > Must be something in particular with the conetns of the 
    > packet NMAP sends.
    According to nmap man pages, it sends 0 byte udp datagrams.
    
    -Yanek.
    



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