full-disclosure - [ESA-20030804-019] 'postfix' Remote denial-of-service.

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From: security at guardiandigital.com (EnGarde Secure Linux)
Subject: [ESA-20030804-019] 'postfix' Remote denial-of-service.

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+------------------------------------------------------------------------+
| Guardian Digital Security Advisory                     August 04, 2003 |
| http://www.guardiandigital.com                        ESA-20030804-019 |
|                                                                        |
| Package: postfix                                                       |
| Summary: Remote denial-of-service.                                     |
+------------------------------------------------------------------------+

  EnGarde Secure Linux is an enterprise class Linux platform engineered
  to enable corporations to quickly and cost-effectively build a complete
  and secure Internet presence while preventing Internet threats.

OVERVIEW
- --------
  Michal Zalewski has discovered a vulnerability in the Postfix MTA which
  could lead to a remote DoS attack.

  The Common Vulnerabilities and Exposures project (cve.mitre.org) has
  assigned the name CAN-2003-0540 to this issue.

  Guardian Digital products affected by this issue include:

    EnGarde Secure Community v1.0.1
    EnGarde Secure Community 2
    EnGarde Secure Professional v1.1
    EnGarde Secure Professional v1.2
    EnGarde Secure Professional v1.5

  It is recommended that all users apply this update as soon as possible.

SOLUTION
- --------
  Guardian Digital Secure Network subscribers may automatically update
  affected systems by accessing their account from within the Guardian
  Digital WebTool.

  To modify your GDSN account and contact preferences, please go to:

    https://www.guardiandigital.com/account/

  Below are MD5 sums for the updated EnGarde Secure Linux 1.0.1 packages:

    SRPMS/postfix-20001121-1.0.21.src.rpm
      MD5 Sum: d595e164f2e48766043486fbc71c32b8

    i386/postfix-20001121-1.0.21.i386.rpm
      MD5 Sum: 4402f4bb441d30c9c631a97ad843700e

    i686/postfix-20001121-1.0.21.i686.rpm
      MD5 Sum: 2750ae2169625dba290e80c13009f258

REFERENCES
- ----------
  Guardian Digital's public key:
    http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY

  Postfix's Official Web Site:
    http://www.postfix.org/

  Guardian Digital Advisories:
    http://infocenter.guardiandigital.com/advisories/

  Security Contact: security@...rdiandigital.com

- --------------------------------------------------------------------------
Author: Ryan W. Maple <ryan@...rdiandigital.com>
Copyright 2003, Guardian Digital, Inc.

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Copyright(c) 2003 Guardian Digital, Inc.             GuardianDigital.com
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