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Date: Thu, 20 Nov 2008 11:41:28 +0300
From: Eygene Ryabinkin <>
To: Michael Sweet <>
Cc:, "Steven M. Christey" <>
Subject: Re: CVE request: CUPS DoS via RSS subscriptions

Michael, good day.

Wed, Nov 19, 2008 at 05:54:49PM -0800, Michael Sweet wrote:
> Eygene Ryabinkin wrote:
> > The attached patch fixes the things for me, but perhaps it needs
> > some more polishing.  Will try to take a fresh look at this tomorrow.
> > 
> > Mike, please, take a look at this!
> You'll find a much more complete patch already in CUPS svn for both
> 1.3.x and 1.4.x, along with a new subscription test for the
> "make check" target.  I didn't withhold the patch since the browser
> attack vector was closed in 1.3.8...
> I've attached my 1.3.x patch...

Thanks!  Just a quick question: the check in add_job_subscriptions() is
catching non-NULL result of cupsdAddSubscription, but for the failed
subscription is does not inform user about this.  The code in
create_subscription() returns error.  Is it intentional?  Client gets
nothing (at least 'lpr -m file.txt' outputs no error), but subscription
is silently dropped.

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