Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Wed, 11 May 2016 20:36:56 -0700
From: David Chan <david@...anm.com>
To: oss-security@...ts.openwall.com
Subject: Re: GraphicsMagick Response To "ImageTragick"

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On 5/9/2016 12:03 PM, John Lightsey wrote:
> On Mon, 2016-05-09 at 18:20 +0100, Simon McVittie wrote:
>> On Mon, 09 May 2016 at 08:29:40 -0500, Bob Friesenhahn wrote:
> 
> 
> The "man" attack vector needs the same determination.
> 
> It is similar to CVE-2016-3717 in impact, but uses a different
> codepath. The existing fixes for CVE-2016-3717 do not address it.
> 

The patch which fixes the gplt vector also fixes a related vector in gs.
The lack of -dSAFER when invoking Ghostscript allows for arbitrary
file read/write. Sander Bos noticed that ImageMagick isn't affected
by this bug. Given that the -dSAFER bug is specific to GraphicsMagick,
I think a separate CVE should be assigned.

David
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2

iQEcBAEBCAAGBQJXM/pYAAoJEFNDksGFxk4g+kMH/2oeXMLdfZqup02Zq5IJ1zIf
cDpU2CLrDcNyyKAC81WviR6A8jj7VX58rI4O4be/OBlO+6X6CP5PVZzERisqlqdO
sIpHryXReA1rjPPDB3WWXY3ijLPVozitTmM0p+81TfHrkL0LTc/ZXUMeAEw2xRgw
dzU31nAMTIKV/FS87VkTesScotDLAEXXAxeD4LEepGoxTCqVctjLvk0yXBg9tpZc
LwB+2EKMA45bMo0mRNRUnSCIhQXNHSdTpjnmR53nd5BYZtVPvVy3n31QaSXmt4MF
OsghVcp44/Nb8Etkictu78yHusnXa6stTctdLzRS+51XzGj6nvW4VF89T+ASl/Q=
=yy3S
-----END PGP SIGNATURE-----

Powered by blists - more mailing lists

Your e-mail address:

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.