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fsavmse640-03_readme.txt
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2006-01-17
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==========================================================================
Post-Release Fix for
F-Secure Anti-Virus for Microsoft Exchange 6.40
Hotfix 3
Copyright (c) 1993-2006 F-Secure Corporation.
All Rights Reserved.
==========================================================================
SUMMARY
This post-release fix is for the following products/versions:
o F-Secure Anti-Virus for Microsoft Exchange 6.40
If you use earlier versions of the above mentioned products, please
download and install the latest version.
This post-release fix includes the following fixes:
o CTS#44625 Specially crafted ZIP archives may be used to execute code on
affected systems
o CTS#44639 RAR and ZIP archives can be crafted to avoid successful scanning
and obfuscate malicious code in the archive
Recommendation: Applying this post-release fix is strongly recommended.
TECHNICAL DETAILS
It is possible to create specially crafted ZIP archives that cause a buffer
overflow. This allows an attacker to execute code of his choice on affected
systems. It is in addition possible to create malformed RAR- and ZIP-archives
that canÆt be scanned properly. This can lead to a false negative scan result.
For more detailed information, please see
http://www.f-Secure.com/security/fsc-2006-1.shtml
OTHER INFORMATION
This post-release fix includes the following files:
File Name File Version MD5 Checksum
-----------------------------------------------------------------------
fm4av.dll 1.6.34.91 84C4E2C1A621DD0DF19EECF00D818B4B
FSLFPI.dll 2.3.11.0 8A2627D26D4011C5876A33DF5CFEADBC
NOTE: Fixes for a particular component are cumulative and contain all
of the previous fixes for that component.
For additional information, please visit F-Secure Support Center at:
http://support.f-secure.com/
HOW TO APPLY THE POSTFIX
o Unpack all files from the package into a temporary folder on the
local machine.
o Open this folder in Windows Explorer and then double-click
"fsavmse640-03.fsfix".
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