Multiple F-Secure Anti-Virus products and versions for Windows and Linux, including Anti-Virus for Windows Servers 5.52 and earlier, Internet Security 2004, 2005 and 2006, and Anti-Virus for Linux Servers 4.64 and earlier, allow remote attackers to hide arbitrary files and data via malformed (1) RAR and (2) ZIP archives, which are not properly scanned.
Multiple interpretation error in various F-Secure Anti-Virus products, including Workstation 5.43 and earlier, Windows Servers 5.50 and earlier, MIMEsweeper 5.50 and earlier, Anti-Virus for Linux Servers and Gateways 4.61 and earlier, and other products, allows remote attackers to bypass antivirus protection via a compressed file with both local and global headers set to zero, which does not prevent the compressed file from being opened on the target system.