Bug 109701 - RHSA-2003:275 doesn't fix IPP problem
RHSA-2003:275 doesn't fix IPP problem
Status: CLOSED NOTABUG
Product: Red Hat Linux
Classification: Retired
Component: cups (Show other bugs)
9
athlon Linux
medium Severity medium
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Assigned To: Tim Waugh
David Lawrence
: Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2003-11-10 21:17 EST by Need Real Name
Modified: 2007-04-18 12:59 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Clone Of:
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Last Closed: 2003-11-10 21:18:24 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Need Real Name 2003-11-10 21:17:10 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1)
Gecko/20030225

Description of problem:
My system has the updated cups package, and the IPP problem still
exists. I end up with a ton of IPP connections in a TIME_WAIT state. 

Version-Release number of selected component (if applicable):
cups-1.1.17-13.3.0.3

How reproducible:
Always

Steps to Reproduce:
1. /etc/rc.d/cups start
2.
3.
    

Actual Results:  root@olympus$ netstat
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 localhost.localdo:60990 localhost.localdoma:ipp
TIME_WAIT
tcp        0      0 localhost.localdo:60989 localhost.localdoma:ipp
TIME_WAIT
tcp        0      0 localhost.localdo:60988 localhost.localdoma:ipp
TIME_WAIT


This netstat output was after cups was running for about 20 seconds. I
 started up cups and had 12 of these after 1 minute of run time. 

Expected Results:  Cups should work properly.

Additional info:
Comment 1 Tim Waugh 2003-11-10 21:18:24 EST
It is normal to have TIME_WAIT connections.
Comment 2 Need Real Name 2003-11-10 21:25:27 EST
It is normal for cups to spawn dozens of connections a minute when
there is no printing going on on the system? If that is true, then
cups is a totally useless system and needs to be replaced.

Comment 3 Tim Waugh 2003-11-10 21:28:30 EST
It's the little desktop panel icon thingy.  It's fixed not to do that
in Fedora Core 1.  But the TIME_WAIT connections are harmless.
Comment 4 Pawel Salek 2004-01-19 11:45:25 EST
Well, it is not completely harmless: on a larger network, it can
create quite a load leading to a DoS effect - see also 88393. Even
CUPS internal safety checks seem to confirm that: I have seen
following messages in /var/log/cups/error_log

Possible DoS attack - more than 10 clients connecting from xx.xx.xx.xxx!

The ip number in question was running KDE (RH9+updates).
Comment 5 Tim Waugh 2004-01-19 11:59:44 EST
This is probably related to bug #107787.
Comment 6 Tim Waugh 2004-01-19 12:00:46 EST
Which, aside from being private (oops), is fixed in rawhide.  It was
that cupsd wasn't closing sockets as early as it could/should.

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