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From: Brian Somers <brian@FreeBSD.org>
Date: Mon, 8 Jun 2009 21:42:30 +0000 (UTC)
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Subject: cvs commit: src/sbin/dhclient dhclient.c
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brian       2009-06-08 21:42:30 UTC

  FreeBSD src repository

  Modified files:
    sbin/dhclient        dhclient.c 
  Log:
  SVN rev 193765 on 2009-06-08 21:42:30Z by brian
  
  Fix an off by one error when we limit append/prepend text sizes based on our
  internal buffer sizes.
  
  When we 'append', assume we're appending to text.  Some MS dhcp servers will
  give us a string with the length including the trailing NUL.  when we 'append
  domain-name', we get something like "search x.y\000 z" in resolv.conf :(
  
  MFC after:      1 week
  Security:       A buffer overflow (by one NUL byte) was possible.
  
  Revision  Changes    Path
  1.26      +15 -5     src/sbin/dhclient/dhclient.c