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Date: Mon, 25 Aug 2008 09:58:38 -0600
From: Vincent Danen <vdanen@...sec.ca>
To: oss-security@...ts.openwall.com, vendor-sec@....de
Subject: Re: Re: libxml2 denial of service flaw
	(CVE-2008-3281)

* [2008-08-24 17:16:55 +0200] Nico Golde wrote:

>Hi again,
>* Nico Golde <oss-security+ml@...lde.de> [2008-08-24 17:07]:
>> * Robert Buchholz <rbu@...too.org> [2008-08-23 18:06]:
>> > On Wednesday 20 August 2008, Daniel Veillard wrote:
>> > > On Wed, Aug 20, 2008 at 12:42:29PM -0400, Josh Bressers wrote:
>[...] 
>> > Our gnome maintainers pointed out that the patch (which was also pushed 
>> > upstream) breaks GDM in GNOME 2.22, as can be seen in Gentoo and 
>> > Mandriva:
>> >   https://bugs.gentoo.org/show_bug.cgi?id=235529
>> >   https://qa.mandriva.com/show_bug.cgi?id=43094
>> > 
>> > upstream bug:
>> >   http://bugzilla.gnome.org/show_bug.cgi?id=549087
>> > 
>> > Those who did not push updates yet might want to delay this, we have 
>> > been reverting the patch for now.
>> > I am CC'ing oss-security, please send follow-ups to that list.
>> 
>> Looks like rebuilding librsvg against libxml2 does solve the 
>> problem referring to our bug report:
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496125#79
>
>YFYI there is a new patch which is not extending the 
>xmlEntity struct but abusing an already existing field.
>See https://bugzilla.redhat.com/show_bug.cgi?id=459830

Does anyone know if this affects anything other than librsvg?  If so,
the patch approach to fixing libxml2 would be better.  I've just started
looking into this today, so I'm not quite up to speed on this, but it
looks like there are problems with the gnome menus as well.

Has anyone tried this new patch?

-- 
Vincent Danen @ http://linsec.ca/

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