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TUCoPS :: Macintosh :: tcpip03.htm

TCP/IP tcp syn flood



Vulnerability

    TCP/IP

Affected

    Mac OS

Description

    VallaH  found  an  interesting  problem  with the macintosh tcp/ip
    stack with system 7.1 and 8.0.  It seems that if your send a large
    quantity of tcp syn's at a  high rate Mac tcp 7.1 crashes  and 7.8
    uses ALOT of cpu (80%).  To  recreate this bug just get a copy  of
    strobe and  portscan a  mac until  it hits  all 65535  ports, they
    will see the effects.

Solution

    This is a known problem  with MacOS versions <8.0 (and  many other
    operating systems  as well).   This problem  has been  solved with
    OpenTransport 1.2


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