SuSE Security Announcement: dhclient

11 Jul 2000

A security hole was discovered in the package mentioned above.
Please update it as soon as possible or disable the service if you are using
this software on your SuSE Linux installation(s).

Other Linux distributions or operating systems might be affected as
well, please contact your vendor for information about this issue.

Please note that we provide this information on an "as-is" basis only.
There is no warranty whatsoever and no liability for any direct, indirect or
incidental damage arising from this information or the installation of
the update package.
_____________________________________________________________________________

1. Problem Description

  The client side program of the ISC DHCP package, dhclient,
  does not do quoting of server messages before passing them to
  /sbin/dhclient-script. This script is executed with root privileges.

2. Impact

  Dhclient could be tricked by a rogue DHCP server to execute commands
  as user root.
  This leads to a remote root compromise of the system using dhclient.

3. Solution

  Update the package from our FTP server.
______________________________________________________________________________

Please verify these md5 checksums of the updates before installing:
(For SuSE 6.0, please use the 6.1 updates)

AXP:
262677203e3b1dada23e65ae60d08264  ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/dhclient-2.0pl2-3.alpha.rpm

910097426b5771c82abf8f323086b5ba  ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/dhclient-2.0pl2-3.alpha.rpm

<p>i386:
300a7c8220d3b9f65a2aef3ed4fdb7b3  ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/dhclient-2.0pl2-3.i386.rpm

7be68cd54e7fd3766b7eb36fc2e854c5  ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/dhclient-2.0pl2-3.i386.rpm

44fad0cee0cb53627ed7c507077d5d2b  ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/dhclient-2.0pl2-3.i386.rpm

320d4414841e29bd08584fc5d8592d99  ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/dhclient-2.0pl2-3.i386.rpm

<p>PPC:
a8a19501e4821ab6c7b375972eb1e5ce  ftp://ftp.suse.com/pub/suse/ppc/update/6.3/n1/dhclient-2.0pl2-3.ppc.rpm

b4ea052ba25b10586cc14f6fea5b2d9f  ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/dhclient-2.0pl2-3.ppc.rpm

______________________________________________________________________________

You can find updates on our ftp-Server:

  ftp://ftp.suse.com/pub/suse/i386/update for Intel processors
  ftp://ftp.suse.com/pub/suse/axp/update  for Alpha processors

or try the following web pages for a list of mirrors:
  http://www.suse.de/ftp.html
  http://www.suse.com/ftp_new.html

Our webpage for patches:
  http://www.suse.de/patches/index.html

Our webpage for security announcements:
  http://www.suse.de/security

If you want to report vulnerabilities, please contact
  security@suse.de
______________________________________________________________________________

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_____________________________________________________________________________

  This information is provided freely to everyone interested and may
  be redistributed provided that it is not altered in any way.

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SuSE Security Announcement: dhclient

thomas＠suse.de