[Pkg-cups-devel] Bug#506180: Bug#506180: CUPS: daemon crashes when adding more than 100 rss subscriptions

Raphael Geissert atomo64 at gmail.com
Wed Nov 19 22:13:04 UTC 2008


found 506180 1.3.8-1lenny2
thanks

2008/11/19 Martin Pitt <mpitt at debian.org>:
> Version: 1.3.8-1
>
> Hello Raphael,

Hello Martin,

>
> Raphael Geissert [2008-11-18 21:22 -0600]:
>> An exploit[0][1] has been published for CUPS.
>>
>> > The daemon crashes when more than 100 RSS Subscriptions are added which has
>> > been successfully tested on the latest versions of openSuse and Ubuntu
>> > Desktop at time of writing (11.0 and 8.04.1 respectively). For some reason,
>> > the user doesn't need to login to add RSS subscriptions, although
>> > authentication is required to perform other actions. I'm not sure if this
>> > bug can lead to remote code execution. Further investigation/gdbing is
>> > required.
>>
>> Note: when reproducing it locally in a default Debian setup, I was required to
>> login before the RSS subscriptions could be added and then crash cupsd.
>
> This is http://www.cups.org/str.php?L2774 which has been fixed in
> 1.3.8. Thus current testing and unstable are unaffected. Etch is
> unaffected as well, since 1.2.7 did not yet have RSS subscriptions.

I did manage to reproduce it in 1.3.8-1lenny2, so whatever was changed
didn't actually fix the bug.

>
> So I close this report. However, it is relevant for Ubuntu 7.10 and
> 8.04, so I'll fix it there.
>
>> If you fix the vulnerability please also make sure to include the CVE id when
>> one is assigned in the changelog entry.
>
> I will, but currently there is none.

Thanks

>
> Thanks for pointing out!
>
> Martin
> --
> Martin Pitt                        | http://www.piware.de
> Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)
>
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Cheers,
-- 
Raphael Geissert - Debian Maintainer
www.debian.org - get.debian.net

Alfred Hitchcock  - "Television has brought back murder into the home
- where it belongs."





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