[Mimedefang] mimedefang/SA inserting blank header lines

[Ole Craig]

On 11/18/02 at 23:37, 'twas brillig and Barry Byrne scrobe:

> Don't know if this is the exact problem, but I tidy up the report before
> inserting it into a header:
> 
> 	my $fixed_report = $report;
> 	$fixed_report =~ s/\n+\z//g;	# fix for multiline header
> 	$fixed_report =~ s/\n/\n\t/g;	# fix for multiline header
> 	action_add_header("X-Spam-Report","$fixed_report");
> 
>  - Barry
> 
> -----Original Message-----
>> 	I'm having a very occasional problem with sendmail/md/sa
>> inserting lines consisting of one blankspace char into the headers of
>> an email; such messages are rejected occasionally by certain servers
>> on the basis that they may cause outlook to drop its trousers[1],
>> muttering something about a "blank folding" vulnerability.
>> 
>> 	These lines seem to occur after the X-Spam-Report: lines, just
>> before X-Scanned-By. An example (with mangled addresses to protect my
>> users and their correspondents) can be seen at

Barry -
	Thanks, that did the trick.

David - 
	You may want to consider incorporating this into the SA filter
example.


		Ole
--
Ole Craig * UNIX, linux, SMTP-ninja; news, web; SGI martyr * CS Computing
Facility, UMass * <www.cs.umass.edu/~olc/pgppubkey.txt> for public key