SuSE: 6.3-6.4 Critical: Tnef Remote Access Risk Advisory

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______________________________________________________________________________

                        SuSE Security Announcement

        Package:  tnef < 0-124
        Date:     Mon Jul 10 19:19:16 CEST 2000

        Affected SuSE versions: 6.3-6.4
        Vulnerability Type:     remote 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

  Tnef extracts eMails compressed with MS-Outlook. The compressed file
  includes the path name to which the decompressed data should be
  written.

2. Impact

  By specifing a path name like /etc/passwd and sending a compressed
  mail to root an adversary could gain remote root access to a system
  by overwriting the local password database.
  The same could happen if a mail virus scanner, like AMaVIS, process'
  a malicious mail.

3. Solution

  Update the package from our FTP server.

  It's also possible to use the '-x' option of tnef to specify the
  outputfile.

______________________________________________________________________________

Please verify these md5 checksums of the updates before installing:

AXP:
cc4983da1084c911998ddcc589050ec2    /6.3/ap1/tnef-0-124.alpha.rpm
ae9b2d0e3231ee9ce35ee2fe0bd7788d    /6.3/zq1/tnef-0-124.src.rpm

451485d86daa2b45ae897dc88bf8a61b    /6.4/ap1/tnef-0-124.alpha.rpm
4bd689ba7abb7235b84570a90b3875d8    /6.4/zq1/tnef-0-124.src.rpm

i386:
5909688f8568eb1f14591c1428235777    /6.3/ap1/tnef-0-124.i386.rpm
5c02ff06d98030541afb10c178a206f3    /6.3/zq1/tnef-0-124.src.rpm

58fa8e976df90aa09c30bf8fd5f6b2b5    
1a99d0cd8315ae3a1990781b7977c4c6    /6.4/zq1/tnef-0-124.src.rpm

PPC:
3be0b423e678923f27c42f8c59c09ab4    
5f7f8c3c025c2f114aa115532e250723    

b37d6374a7b0147dbd6bf9889ec68367    
695fcd009a345638f049200dc0d6279d    




______________________________________________________________________________

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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