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MDKSA-2003:081 - Updated postfix packages fix remote DoS
From: Mandrake Linux Security Team <security () linux-mandrake com>
Date: 4 Aug 2003 06:14:56 -0000

Hash: SHA1


                Mandrake Linux Security Update Advisory

Package name:           postfix
Advisory ID:            MDKSA-2003:081
Date:                   August 4th, 2003

Affected versions:      8.2, 9.0, Corporate Server 2.1,
                        Multi Network Firewall 8.2

Problem Description:

 Two vulnerabilities were discovered in the postfix MTA by Michal
 Zalewski.  Versions prior to 1.1.12 would allow an attacker to bounce-
 scan private networks or use the daemon as a DDoS (Distributed Denial
 of Service) tool by forcing the daemon to connect to an arbitrary
 service at an arbitrary IP address and receiving either a bounce
 message or by timing.  As well, versions prior to 1.1.12 have a bug
 where a malformed envelope address can cause the queue manager to
 lock up until an entry is removed from the queue and also lock up
 the SMTP listener leading to a DoS.
 Postfix version 1.1.13 corrects these issues.  The provided packages
 have been patched to fix the vulnerabilities.


Updated Packages:
 Corporate Server 2.1:
 2aad99a13d54ad1639f838b72c541c5c  corporate/2.1/RPMS/postfix-1.1.13-1.1mdk.i586.rpm
 435cada8d84f410e4991d8563e6d42a6  corporate/2.1/SRPMS/postfix-1.1.13-1.1mdk.src.rpm

 Corporate Server 2.1/x86_64:
 92a11a97498d15b49800691daccfde79  x86_64/corporate/2.1/RPMS/postfix-1.1.13-1.2mdk.x86_64.rpm
 6f340161b82d806f11b9cad2acc36041  x86_64/corporate/2.1/SRPMS/postfix-1.1.13-1.2mdk.src.rpm

 Mandrake Linux 8.2:
 3d78e8d0a5c6d841697c055112fa3cc0  8.2/RPMS/postfix-20010228-20.1mdk.i586.rpm
 d06d059baad0ab14b09c7612f94c7296  8.2/SRPMS/postfix-20010228-20.1mdk.src.rpm

 Mandrake Linux 8.2/PPC:
 56162355881b39128f60f94e2992edbb  ppc/8.2/RPMS/postfix-20010228-20.1mdk.ppc.rpm
 d06d059baad0ab14b09c7612f94c7296  ppc/8.2/SRPMS/postfix-20010228-20.1mdk.src.rpm

 Mandrake Linux 9.0:
 2aad99a13d54ad1639f838b72c541c5c  9.0/RPMS/postfix-1.1.13-1.1mdk.i586.rpm
 435cada8d84f410e4991d8563e6d42a6  9.0/SRPMS/postfix-1.1.13-1.1mdk.src.rpm

 Multi Network Firewall 8.2:
 3d78e8d0a5c6d841697c055112fa3cc0  mnf8.2/RPMS/postfix-20010228-20.1mdk.i586.rpm
 d06d059baad0ab14b09c7612f94c7296  mnf8.2/SRPMS/postfix-20010228-20.1mdk.src.rpm

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

To upgrade automatically, use MandrakeUpdate or urpmi.  The verification
of md5 checksums and GPG signatures is performed automatically for you.

A list of FTP mirrors can be obtained from:


All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team by executing:

  gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98

Please be aware that sometimes it takes the mirrors a few hours to

You can view other update advisories for Mandrake Linux at:


MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by


If you want to report vulnerabilities, please contact


Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security linux-mandrake.com>
Version: GnuPG v1.0.7 (GNU/Linux)


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