Alexander Hagenah has reported a vulnerability in BitDefender for Mail Servers, which can be exploited by malware to bypass certain scanning functionality.

The vulnerability is caused due to an error when parsing attachments and can be exploited via a specially crafted UUencoded mail with multiple attachments.

Successful exploitation causes malware in an attachment to pass the scanning functionality undetected.

The vulnerability has been reported in engine versions 1.6.1 and prior for Linux and FreeBSD.

Solution
The vendor has reportedly issued a patch, which is downloaded automatically.

Provided and/or discovered by
Alexander Hagenah

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