bug processing zip file with errors
drew at THEMARSHALLS.CO.UK
Wed Jun 30 20:09:26 IST 2004
Mariano Absatz wrote:
>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
>Example corrupt zip file (don't know where it came from nor what it has, it
>was in a message that triggered the problem):
>Would someone with an MTA other than ZMailer try to send this file thru a
>MailScanner server and see what happens?
Postfix 2.1.1, MS 4.31.6, ClamAV & F-Prot (Latest) brought the box to a
stand still until I removed the queued file, top showed CPU just about
maxed out on a single MS instance (I let it running for 7 minutes in
case it was just a heavily compressed file). Definitely a problem...
In line with our policy, this message has
been scanned for viruses and dangerous
content by MailScanner, and is believed to be clean.
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