[exim-dev] [Bug 1550] New: system_filter.exim has bug in non…

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http://bugs.exim.org/show_bug.cgi?id=1550
           Summary: system_filter.exim has bug in non-quoted filename
                    matching regex
           Product: Exim
           Version: 4.76
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: bug
          Priority: medium
         Component: Filters
        AssignedTo: nigel@???
        ReportedBy: info@???
                CC: exim-dev@???

If you send a file attachment with a name like so:

yaddayadda.com - Email Accounts.xls

It will be blocked by the system filter by the regex for unquoted filenames. In
the raw email it will come through like:

Content-Transfer-Encoding: base64
Content-Type: application/vnd.ms-excel;
name="yaddayadda.com - Email Accounts.xls"
Content-Disposition: attachment;
filename="yaddayadda.com - Email Accounts.xls"

The regex on line 145 will match:

filname="yaddayadda.com

And will fail the sending of the email.

I suggest adding this to the regex just after (?:file)?name=

[^\"]

My apologies if this has already be addressed in a later build, I just don't
have time to do a totally fresh install of exim to test, but wanted to make
sure you guys know.

Have a good day,
-Steve


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