[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <1444047935.3188.32.camel@opteya.com>
Date: Mon, 05 Oct 2015 14:25:35 +0200
From: Yann Droneaud <ydroneaud@...eya.com>
To: oss-security@...ts.openwall.com, Gustavo Grieco
<gustavo.grieco@...il.com>
Cc: Benjamin Otte <otte@...hat.com>, Matthias Clasen <mclasen@...hat.com>
Subject: Re: Re: CVE request: Heap overflow with a gif file
in gdk-pixbuf < 2.32.1
Hi,
Le jeudi 01 octobre 2015 à 12:25 -0300, Gustavo Grieco a écrit :
> 2015-10-01 10:03 GMT-03:00 Gustavo Grieco <gustavo.grieco@...il.com>:
>
> > We found a heap overflow in the gdk-pixbuf implementation triggered
> > by the scaling of gif file.These issues are only fixed in the
> > recent release of gdk-pixbuf 2.32.1 but affects older versions (we
> > tested it in a fully updated Ubuntu 14.04).
> >
>
>
> If someone needs more details, it was fixed in 2.32.1 with this
> commit:
> https://git.gnome.org/browse/gdk-pixbuf/commit/?id=e9a5704edaa9aee949
> 8f1fbf6e1b70fcce2e55aa
>
>
The patch fixes pixops_scale_nearest() but AFAICT I think the same
should be applied to other functions has they use the same construct:
- pixops_composite_nearest()
https://git.gnome.org/browse/gdk-pixbuf/tree/gdk-pixbuf/pixops/pixops.c?id=e9a5704edaa9aee9498f1fbf6e1b70fcce2e55aa#n339
- pixops_composite_color_nearest()
https://git.gnome.org/browse/gdk-pixbuf/tree/gdk-pixbuf/pixops/pixops.c?id=e9a5704edaa9aee9498f1fbf6e1b70fcce2e55aa#n504
- pixops_process()
https://git.gnome.org/browse/gdk-pixbuf/tree/gdk-pixbuf/pixops/pixops.c?id=e9a5704edaa9aee9498f1fbf6e1b70fcce2e55aa#n1316
Regards.
--
Yann Droneaud
OPTEYA
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
