Some vulnerabilities have been reported in various F-Secure products, which can be exploited by malware to bypass detection or malicious people to compromise a vulnerable system.

1) A boundary error in the handling of ZIP archives can be exploited via a specially crafted ZIP archive to cause a buffer overflow and execute arbitrary code.

2) An error in the scanning functionality when processing RAR and ZIP archives can be exploited to prevent malware from being detected.

The vulnerabilities affect the following products:
* F-Secure Anti-Virus for Workstation version 5.44 and earlier
* F-Secure Anti-Virus for Windows Servers version 5.52 and earlier
* F-Secure Anti-Virus for Citrix Servers version 5.52
* F-Secure Anti-Virus for MIMEsweeper version 5.61 and earlier
* F-Secure Anti-Virus Client Security version 6.01 and earlier
* F-Secure Anti-Virus for MS Exchange version 6.40 and earlier
* F-Secure Internet Gatekeeper version 6.42 and earlier
* F-Secure Anti-Virus for Firewalls version 6.20 and earlier
* F-Secure Internet Security 2004, 2005 and 2006
* F-Secure Anti-Virus 2004, 2005 and 2006
* Solutions based on F-Secure Personal Express version 6.20 and earlier
* F-Secure Anti-Virus for Linux Workstations version 4.52 and earlier
* F-Secure Anti-Virus for Linux Servers version 4.64 and earlier
* F-Secure Anti-Virus for Linux Gateways version 4.64 and earlier
* F-Secure Anti-Virus for Samba Servers version 4.62
* F-Secure Anti-Virus Linux Client Security 5.11 and earlier
* F-Secure Anti-Virus Linux Server Security 5.11 and earlier
* F-Secure Internet Gatekeeper for Linux 2.14 and earlier

Solution
Apply patches (see patch matrix in vendor advisory).

Provided and/or discovered by
The vendor credits Thierry Zoller.

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://www.f-secure.com/security/fsc-2006-1.shtml

Deep Links
Links available to Secunia VIM customers