From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050524 Fedora/1.0.4-4 Firefox/1.0.4 Description of problem: If you configure CUPS to require SSL encrypted IPP connections it's possible to crash the CUPS server daemon by quickly and repeatedly requesting pages from the web interface. Version-Release number of selected component (if applicable): cups-1.1.22-0.rc1.9.6 How reproducible: Always Steps to Reproduce: 1. Configure CUPS to require SSL IPP connections. 2. Connect with a web browser to the web interface over the SSL port, eg: https://cupsserver:631/printers/testprinter 3. Hit refresh in the browser quickly several times, the CUPS daemon will crash after ~3 refreshes. Actual Results: CUPS daemon crashes with the following in /var/log/cups/error_log: E [12/Jul/2005:09:07:34 +0100] CloseClient: error:1409F07F:SSL routines:SSL3_WRITE_PENDING:bad write retry E [12/Jul/2005:09:07:34 +0100] CloseClient: error:1409F07F:SSL routines:SSL3_WRITE_PENDING:bad write retry Expected Results: Daemon shouldn't crash :) Additional info:
How precisely are you configuring CUPS to require SSL IPP connections? Are you putting "Encryption Required" in cupsd.conf? Which section are you putting it in?
Config file snippet: SSLPort 443 .. <Location /printers> Order Deny,Allow Allow From x.x.x.x/24 AuthType Basic AuthClass User Encryption required Satisfy all </Location>
2. Connect with a web browser to the web interface over the SSL port, eg: https://cupsserver:631/printers/testprinter Can you clarify this please? Do you mean 'https://cupsserver:443/printers/testprinter'?
Yep sorry, that should've been: SSLPort 631
Confirmed.
Reported upstream as: http://www.cups.org/str.php?L1290
This issue is on Red Hat Engineering's list of planned work items for the upcoming Red Hat Enterprise Linux 4.4 release. Engineering resources have been assigned and barring unforeseen circumstances, Red Hat intends to include this item in the 4.4 release.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2006-0323.html