Urgent base64 decoding bug - affects virus detection

MyDoom.n has tickled a bug in Mail::Box base64 decoding that emits corrupted
data. Msgs with that virus (and possibly other mail) use non-standard line
breaks in the base64 data. This causes file attachments to be truncated
which prevents virus scanners from detecting a virus.

The fix is to modify Mail/Message/TransferEnc/Base64.pm to decode the body
as one chunck, not individual lines

in "sub _decode_from_lines($)" change

join '', map { decode_base64($_) } $body->lines;

to

decode_base64($body->string);

decode_from_file() requires a similar patch.


Quoted Printable and possibly other transfer encodings have the same issue
and should have similar fixes

Thanks,
    Todd