MDKSA-2003:081 - Updated postfix packages fix remote DoS

From: Mandrake Linux Security Team (
Date: 08/04/03

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    Date: 4 Aug 2003 06:14:56 -0000

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                    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 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 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
    Version: GnuPG v1.0.7 (GNU/Linux)

    -----END PGP SIGNATURE-----

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