Hello,
with a recent update to the ruleset, we're encountering certain mails,
which cause the rule-evaluation to use 100% cpu.
The effect was reproduced with Proxmox Mailgateway 5.2 (running
Spamassassin 3.4.2 ) and Ubuntu 19.04 (also running Spamassassin 3.4.2)
After some debugging the issue was narrowed down to the rule
__STYLE_GIBBERISH_1 .
I'm attaching a rather small sample mail which reproduces the issue.
Since this is my first post to this list I'm pretty sure I forgot some
detail, so please don't hesitate to ask for any further information
needed
Thanks and Best Regards,
stoiko
Date: Mon, 27 May 2019 12:39:10 +0200 (CEST)
From: TEST <t...@example.com>
To: <t...@example.com>
Message-ID: <000000000000000000000.test.example.com>
Subject: Modification
MIME-Version: 1.0
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit
<!DOCTYPE html>
<html>
<head>
<title>Modification</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<style type="text/css">
<!--==== ::::::::::::::::::::: STYLE ====-->
<!--==== ::::::::::::::::::::: END STYLE ====-->
</style>
</head>
<body style="-ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;
height: 100% !important; margin: 0 !important; padding: 0 !important; width:
100% !important;">
<!-- body -->
<!--==== EOF ::::::::::::::::::::: MODULE : END BLOC PAYMENT
INFO ====-->
<!--==== BOF ::::::::::::::::::::: MODULE : CONNECTION ====-->
<!--==== BOF ::::::::::::::::::::: MODULE : CONNECTION ====-->
<!--==== BOF ::::::::::::::::::::: MODULE 19 : FOOTER ====-->
<!--==== BOF ::::::::::::::::::::: MODULE 19
====-->
</center>
</td>
</tr>
</table>
</html>
<!-- body -->
