SuSE: Critical Update for Dhclient Remote Root Compromise

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______________________________________________________________________________

                        SuSE Security Announcement

        Package:  dhclient < 2.0
        Date:     Tue Jul 11 15:12:22 CEST 2000

        Affected SuSE versions: 6.1-6.4
        Vulnerability Type:     remote root compromise
        SuSE default package:   no
        Other affected systems: all unix systems using this package
______________________________________________________________________________

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    /6.3/n1/dhclient-2.0pl2-3.alpha.rpm

910097426b5771c82abf8f323086b5ba    


i386:
300a7c8220d3b9f65a2aef3ed4fdb7b3    

7be68cd54e7fd3766b7eb36fc2e854c5    

44fad0cee0cb53627ed7c507077d5d2b    /6.3/n1/dhclient-2.0pl2-3.i386.rpm

320d4414841e29bd08584fc5d8592d99    


PPC:
a8a19501e4821ab6c7b375972eb1e5ce    

b4ea052ba25b10586cc14f6fea5b2d9f    

______________________________________________________________________________

You can find updates on our ftp-Server:

     for Intel processors      for Alpha processors
or try the following web pages for a list of mirrors:
   SUSE – Open-Source-Lösungen für Enterprise Server und Cloud | SUSE
    

Our webpage for patches:
   SUSE – Open-Source-Lösungen für Enterprise Server und Cloud | SUSE

Our webpage for security announcements:
   SUSE – Open-Source-Lösungen für Enterprise Server und Cloud | SUSE

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

SuSE has got two free security mailing list services to which any
interested party may subscribe:

suse-security@suse.com          - moderated and for general/linux/SuSE
                                  security discussions. All SuSE security
                                  announcements are sent to this list.

suse-security-announce@suse.com - SuSE's announce-only mailing list.
                                  Only SuSE's security annoucements are sent
                                  to this list.

To subscribe to the list, send a message to:
     subscribe@suse.com>

To remove your address from the list, send a message to:
     unsubscribe@suse.com>

Send mail to the following for info and FAQ for this list:
     info@suse.com>
     faq@suse.com>

_____________________________________________________________________________

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

Type Bits/KeyID    Date       User ID
pub  2048/3D25D3D9 1999/03/06 SuSE Security Team <security@suse.de>

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