A vulnerability has been reported in various F-Secure products, which can be exploited by malware to bypass the scanning functionality.

The vulnerability is caused due to an error in the handling of CAB and RAR files and can be exploited to bypass the anti-virus scanning functionality via a specially crafted CAB or RAR file.

The vulnerability affect the following products:
* F-Secure Internet Security 2008
* F-Secure Internet Security 2007 Second Edition
* F-Secure Internet Security 2007
* F-Secure Internet Security 2006
* F-Secure Anti-Virus 2008
* F-Secure Anti-Virus 2007, v.7.02
* F-Secure Anti-Virus 2007
* F-Secure Anti-Virus 2006
* F-Secure Anti-Virus Client Security 7.10
* F-Secure Anti-Virus Client Security 7.01
* F-Secure Anti-Virus Client Security 6.03
* F-Secure Anti-Virus Client Security 6.02
* F-Secure Anti-Virus for Workstations 7.10
* F-Secure Anti-Virus for Workstations 7.00
* F-Secure Anti-Virus for Workstations 5.44
* F-Secure Anti-Virus Linux Client Security 5.53
* F-Secure Anti-Virus Linux Client Security 5.52
* F-Secure Anti-Virus for Linux 4.65
* Solutions based on F-Secure Protection Service for Consumers version 7.00 and earlier
* Solutions based on F-Secure Protection Service for Business version 3.00 and earlier
* F-Secure Anti-Virus for Windows Servers 7.00
* F-Secure Anti-Virus for Windows Servers 5.52
* F-Secure Anti-Virus for Citrix Servers 5.52
* F-Secure Anti-Virus Linux Server Security 5.53
* F-Secure Anti-Virus Linux Server Security 5.52
* F-Secure Anti-Virus for Microsoft Exchange 7.0
* F-Secure Anti-Virus for Microsoft Exchange 6.62
* F-Secure Internet Gatekeeper 6.61, Windows
* F-Secure Internet Gatekeeper for Linux 2.16
* F-Secure Anti-Virus for MIMEsweeper 5.61
* F-Secure Messaging Security Gateway 4.0.7 and earlier

Solution
Apply patches. Please see the vendor's advisory for details.

Provided and/or discovered by
The vendor credits Thierry Zoller of n.runs AG.

Changelog
Further details available in Customer Area

Original Advisory
http://www.f-secure.com/security/fsc-2008-1.shtml

Deep Links
Links available in Customer Area