Multiple Security Products MIME Encoding Content Filter Bypass Weakness

Multiple Security Products MIME Encoding Content Filter Bypass Weakness

Various security products are prone to a filter-bypass weakness. These products include:

- BitDefender Mail Protection for SMB 2.0
- ClamAV 0.88.6
- F-prot AntiVirum for Linux x86 Mail Servers 4.6.6
- Kaspersky Anti-Virus for Linux Mail Server 5.5.10

Other applications and versions may also be affected.

This issue occurs because the application fails to handle malformed input that may allow an attacker to bypass the file-filtering mechanism.