bug processing zip file with errors

Fred Broughton phred at SVERICA.COM
Wed Jun 30 17:37:08 IST 2004


RH ES3.0 with sendmail 8.12.8, MailSacnner 4.31.6, Archive::Zip 1.09 and
Mcafee v4.24.0.
MailScanner process that picked up the file died silently (defunct)
Email never made it through.


Regards,

Fred Broughton
Sverica International
VP Technology & Infrastructure
1900 Crestwood Blvd.
Suite 301
Birmingham, AL 35210
205.271.2149 Office
205.271.2148 Fax
205.937.1315 Cell
Phred at Sverica.com


-----Original Message-----
From: Mariano Absatz [mailto:mailscanner at LISTS.COM.AR] 
Sent: Wednesday, June 30, 2004 09:31
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: bug processing zip file with errors

Hi,

I got again the same problem I described in http://tinyurl.com/228le but
now
I could capture the message.

The culprit is an (apparently) innocent message that contains a
corrupted zip
file. The big problem is that instead of detecting the zip file as
corrupt
and do something (maybe we should have an option about what to do?),
MailScanner loops infinitely, eating CPU, and the message doesn't get
delivered nor deleted.

Julian, would you take a look at this when you have a moment, please?

INFO: MailScanner 4.29.7 with ZMailer 2.99.56 - Archive::Zip 1.10 -
RedHat
(used with an old RHL6.1 and with Fedora Core 1). Verified with Perl
5.6.1
and 5.8.3.

Example corrupt zip file (don't know where it came from nor what it has,
it
was in a message that triggered the problem):
http://baby.com.ar/MailScanner/err_zip/PSt422.zip

Would someone with an MTA other than ZMailer try to send this file thru
a
MailScanner server and see what happens?


Example ZMailer queue file:
http://baby.com.ar/MailScanner/err_zip/queue_file

Supervise log (supervise is capturing STDERR from MailScanner):
http://baby.com.ar/MailScanner/err_zip/supervise_times.log

MailScanner log of the affected process (pid=3472):
http://baby.com.ar/MailScanner/err_zip/mailscanner.log
(there were no further output from that PID until I manually killed it
at
10:57).

Output of 'top -b -n1' before killing the affected process:
http://baby.com.ar/MailScanner/err_zip/top.out

TIA


--
Mariano Absatz
El Baby
----------------------------------------------------------
Question: If someone with multiple personalities tries
to commit suicide, do the police consider it a hostage
situation?

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