Re: Re: CVE requests: DoS in librsvg parsing SVGs with circular definitions

[Adam Maris <amaris () redhat com>]

On 15/05/16 09:05, Gustavo Grieco wrote:
> 2016-05-11 0:36 GMT+02:00 Brian May <brian () linuxpenguins xyz>:
> > Just did a git bisect against the source. Assuming I got this right, the
> > following commits fixed the issue.
> Thanks for taking the time to do the git bisect!
>
> > > > They affect the following functions:
> > > > * rsvg_cairo_pop_discrete_layer - rsvg_cairo_pop_render_stack -
> > > > rsvg_cairo_generate_mask: reproducible using circular-1.svg
> > > Use CVE-2016-4347.
> > Fixed in:
> >
> > commit a51919f7e1ca9c535390a746fbf6e28c8402dc61
> > Author: Benjamin Otte <otte () redhat com>
> > Date:   Wed Oct 7 08:45:37 2015 +0200
> >
> >     rsvg: Add rsvg_acquire_node()
> >
> >     This function does proper recursion checks when looking up resources
> >     from URLs and thereby helps avoiding infinite loops when cyclic
> >     references span multiple types of elements.
>
> I think CVE-2016-4347 and CVE-2015-7558 (stack exhaustion due to
> cyclic dependency, reported here:
> http://www.openwall.com/lists/oss-security/2015/12/21/5) are in fact,
> the same issue. This is probably my fault (sorry!).
>
> MITRE: We should reject the the newly assigned one?
>
> Regards,
> Gustavo.

CC'ing MITRE in case they missed this question. We confirm it is a
duplication. Which CVE should be rejected?

Thanks!

-- 
Adam Mariš, Red Hat Product Security
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