tcpdump mailing list archives

Re: getname() vulnerabilitiy


From: Michael Richardson <mcr () sandelman ottawa on ca>
Date: Wed, 24 Mar 2004 10:11:33 -0500

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"Guy" == Guy Harris <guy () alum mit edu> writes:
    >> addrtoname.c:getname() does not check its argument.

    Guy> It can't - it's not always passed a pointer to data in the packet.

    Guy> I've gone through the code looking for calls to "getname()" or 
    Guy> "ipaddr_string()", and added to the print routines the
    Guy> appropriate bounds 
    Guy> checks (which is better than checking in "getname()", as that
    Guy> means that I 

  okay, will you pull these up to the 3.8 branch so we can release 3.8.2
on Monday?

- --
]       ON HUMILITY: to err is human. To moo, bovine.           |  firewalls  [
]   Michael Richardson,    Xelerance Corporation, Ottawa, ON    |net architect[
] mcr () xelerance com      http://www.sandelman.ottawa.on.ca/mcr/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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