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Message-ID: <CAA7hUgFXavT_aOBHHin63=Dnq+7VCZ1torfycCVZhKnHvck+WQ@mail.gmail.com>
Date: Wed, 2 Apr 2014 10:31:52 +0200
From: Raphael Geissert <geissert@...ian.org>
To: oss-security@...ts.openwall.com
Subject: Information on CVE-2014-0158, openjpeg
Hi,
I just became aware of CVE-2014-0158[1], which was recently assigned
to openjpeg.
Looking at the proposed patch (as the description is rather brief), it
seems to me that it is a dup of one of the bugs covered by
CVE-2013-1447.
Quoting from my post to oss-security:
> 5. null pointer dereferences, division by zero, and anything that
would just fit as DoS (CVE-2013-1447)
> [listing the group of issues and attachments]
> 5.
> [...]
> segfault6.patch
Which is exactly what is being commented about in [2], a copy of which
is also available at [3].
IIRC without that patch some of the structures were not initialized
and applications (like the ones shipped by openjpeg itself) would try
to dereference NULL pointers, and just crash - no memory write was
involved.
Or is there more into CVE-2014-0158 that I might be missing?
P.S. testing the encoding functions would probably be like opening
another can of worms, if anyone is interested in that.
[1]https://bugzilla.redhat.com/CVE-2014-0158
[2]https://bugzilla.redhat.com/show_bug.cgi?id=1082925#c8
[3]https://bugzilla.redhat.com/show_bug.cgi?id=1037945#c11
Cheers,
--
Raphael Geissert - Debian Developer
www.debian.org - get.debian.net
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