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Trend Micro Incorporated                              January 19th, 2021
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Trend Micro(TM) ScanMail for IBM Domino 5.6 - Service Pack 1 - Patch 4
                       English - Linux - 64 Bits
                      Critical Patch - Build 4938
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

    Contents 
    ================================================================

    1.  Critical Patch Release Information 

        1.1 Resolved Known Issues 

        1.2 Enhancements 

        1.3 Files Included in This Release 

    2.  Documentation Set 
    
    3.  System Requirements 
        
    4.  Installation 

        4.1 Installing 

        4.2 Uninstalling 
    
    5.  Post-installation Configuration 

    6.  Known Issues 

    7.  Release History 

    8.  Contact Information 

    9.  About Trend Micro 

    10. License Agreement 

    ================================================================
 

1. Critical Patch Release Information 
========================================================================
    
    1.1 Resolved Known Issues 
    ====================================================================
    This Critical Patch resolves the following issue(s): 

    
    Issue 1:      An issue related to the offset value validation task
                  causes the VSAPI/ATSE engine to go into an infinite
                  loop while parsing a crafted .chm file.
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Solution 1:   This Critical Patch updates the VSAPI/ATSE engine to
                  resolve the issue.


    1.2 Enhancements 
    ====================================================================
    There are no enhancements for this Critical Patch release. 
 

    1.3 Files Included in This Release 
    ====================================================================
 
    A. Files for Current Issue
    -----------------------------------------------------------------
       Filename                        Build No.
       --------------------------------------------------------------
       libupdsmd.so                    5.6.1.4938
    
       VSAPI engine                    12.500.1004
       libvsapi.so
       version.txt
    
       ATSE engine                     12.500.1004
       libatse.so
       version.txt
    
    B. Files for Previous Issues
    -----------------------------------------------------------------
       Not applicable.
    
    
2. Documentation Set 
========================================================================

To download or view electronic versions of the documentation set for
this product, go to http://docs.trendmicro.com

- Online Help: The Online Help contains an overview of features and
  key concepts, and information on configuring and maintaining the
  product.

To access the Online Help, go to http://docs.trendmicro.com

- Installation Guide (IG): The Installation Guide contains information
  on requirements and procedures for installing and deploying the
  product.

- Administrator's Guide (AG): The Administrator's Guide contains an
  overview of features and key concepts, and information on configuring
  and maintaining the product.

- Getting Started Guide (GSG): The Getting Started Guide contains
  product overview, installation planning, installation and
  configuration instructions, and basic information intended to get the
  product 'up and running'.

- Support Portal: The Support Portal contains information on
  troubleshooting and resolving known issues.

- To access the Support Portal, go to http://success.trendmicro.com
 

3. System Requirements 
========================================================================
    1. Trend Micro ScanMail for IBM Domino 5.6 SP1 - Patch 4 Build 4912 -
    English - Linux - x64
 

4. Installation 
========================================================================
This section explains key steps for installing the Critical Patch.

    4.1 Installing 
    ====================================================================
    
    To install:
    
    1. Copy the
       "smid_56_lx64_en_sp1_patch4_criticalpatch_b4938.tar.gz"
       installation file to a local folder.
    2. Extract the contents of the installation file to a local
       folder by running the following command:
    
         tar -zvxf smid_56_lx64_en_sp1_patch4_criticalpatch_b4938.tar.gz
    
    3. Go to the "smid_56_lx64_en_sp1_criticalpatch_b4938" folder.
    4. Run the following command:
    
          ./UPDSilent		  
	   
       The "Scan engine version: 12.5.1004" message appears on the 
       Domino console after the system completes the installation.
    
    
    4.2 Uninstalling 
    ====================================================================    
    
    To roll back to the previous build:
    
    1. Go to the "$SMLD_Binary_Folder/hotfix" directory.
    2. Run the following command
    
          ./UPDSilent /u B4938
     

5. Post-installation Configuration 
========================================================================
    
    No post-installation steps are required.
    
    NOTE: Trend Micro recommends that you update your scan engine and
    virus pattern files immediately after installing the product.
 

6. Known Issues 
========================================================================
    There are no known issues for this Critical Patch release. 
 

7. Release History 
========================================================================
    For more information about updates to this product, go to: 
        http://www.trendmicro.com/download

    Prior Hotfixes 
    ====================================================================
    There are no prior hotfixes.
 

8. Contact Information 
========================================================================
    
A license to Trend Micro software usually includes the right to product
updates, pattern file updates, and basic technical support for one (1)
year from the date of purchase only. After the first year, you must
renew Maintenance on an annual basis at Trend Micro's then-current
Maintenance fees.

Contact Trend Micro via fax, phone, and email, or visit our website to
download evaluation copies of Trend Micro products.

https://www.trendmicro.com/en_us/contact.html

NOTE: This information is subject to change without notice.
 

9. About Trend Micro 
========================================================================

Smart, simple, security that fits.

As a global leader in IT security, Trend Micro develops innovative
security solutions that make the world safe for businesses and consumers
to exchange digital information.

Copyright 2021, Trend Micro Incorporated. All rights reserved.

Trend Micro, the t-ball logo, OfficeScan, Trend Micro Security (for
Mac), Control Manager, Trend Micro Apex One, and Trend Micro Apex
Central are trademarks of Trend Micro Incorporated and are registered in
some jurisdictions. All other product or company names may be trademarks
or registered trademarks of their owners.
 

10. License Agreement 
========================================================================

View information about your license agreement with Trend Micro at: 
https://www.trendmicro.com/en_us/about/legal.html

Third-party licensing agreements can be viewed:
- By selecting the "About" option in the application user interface
- By referring to the "Legal" page of the Administrator's Guide