[Bug 3823] New: spamassassin: causes amavisd-new to choke when pyzor or dccifd is enabled

[bu...@bugzilla.spamassassin.org]

http://bugzilla.spamassassin.org/show_bug.cgi?id=3823

           Summary: spamassassin: causes amavisd-new to choke when pyzor or
                    dccifd is enabled
           Product: Spamassassin
           Version: 3.0.0
          Platform: Other
               URL: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=273290
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Libraries
        AssignedTo: dev@spamassassin.apache.org
        ReportedBy: duncf@debian.org


Package: spamassassin
Version: 3.0.0-1
Severity: grave
Tags: patch

I use amavisd-new, which calls SA. Upon upgrading to spamassassin 3.0,
everything turned into a mess.

The reason for the severity is that due to this bug mail will be
delayed, mangled, or sent to the wrong recipients entirely. I started
receiving mail with no body and the recipients stripped out:

X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at silverdream.org
X-Spam-Status: No, hits=-5.9 tagged_above=-999.0 required=3.5
        tests=ALL_TRUSTED, AWL, BAYES_00, NO_REAL_NAME
X-Spam-Level:
Message-Id: <20...@lorien.silverdream.org> Date:
Fri, 24 Sep 2004 03:02:34 +0100 (BST) From: logcheck@silverdream.org
To: undisclosed-recipients:;
Subject: (No Subject)

I also noticed that some mail was delivered to the wrong recipients
entirely. That's not only a very Bad Thing(tm) in terms of loss of mail,
on a multi-user mail server it's an invasion of privacy.

In addition, amavisd-new does not shut down cleanly, I assume this is
because of the SA bug. Turning off pyzor and dcc fixes the all the
problems described.

I don't know much about the internals, but having discussed the issue on
the amavis-user mailing list, it appears to be a known problem with SA
3.0.0 and external applications such as pyzor and dccifd, when SA is
called by amavisd-new.

Sep 24 04:15:27 lorien amavis[26206]: (26198-01) Passed,
<users-return-16442-devnull=silverdream.org@spamassassin.apache.or\g> ->
<de...@silverdream.org>, Message-ID:
<20...@kluge.net>,
Hits: -2.6

Sep 24 04:15:27 lorien amavis[26206]: (26198-01) LMTP: 500 5.5.2 Error:
bad syntax; PENALIZE: X-Envelope-From:
<us...@spamassassin.apache.org>\n

The issue is discussed in the 'Upgrade Problems' thread on the amavis-
user mailing list:
http://marc.theaimsgroup.com/?l=amavis-user&m=109586950804559&w=2

I built the package from source and applied the following patch from
http://marc.theaimsgroup.com/?l=amavis-user&m=109591870017386&w=2, which
seems to cure the problem:

--- Dns.pm.ORIG Wed Sep 22 13:24:09 2004
+++ Dns.pm      Wed Sep 22 13:24:56 2004
@@ -789,9 +789,9 @@
 
     dbg("DCC command: ".join(' ', $path, "-H", $opts, "< '$tmpf'",
"2>&1"),'dcc',-1);
 
-    # my $pid = open(DCC, join(' ', $path, "-H", $opts, "< '$tmpf'", "2>&1",
'|')) || die "$!\n";
-    my $pid = Mail::SpamAssassin::Util::helper_app_pipe_open(*DCC,
-                $tmpf, 1, $path, "-H", split(' ', $opts));
+    my $pid = open(DCC, join(' ', $path, "-H", $opts, "< '$tmpf'", "2>&1",
'|')) || die "$!\n";
+    #my $pid = Mail::SpamAssassin::Util::helper_app_pipe_open(*DCC,
+    #            $tmpf, 1, $path, "-H", split(' ', $opts));
     $pid or die "$!\n";
 
     my @null = <DCC>;



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