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Message-ID: <20150703111524.762f89eb@redhat.com>
Date: Fri, 3 Jul 2015 11:15:24 +0200
From: Stefan Cornelius <scorneli@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2015-3258 CVE-2015-3279 cups-filters
On Fri, 26 Jun 2015 19:59:14 +0200
Stefan Cornelius <scorneli@...hat.com> wrote:
> Hi again,
>
> I think there's a possible problem with the patch that I failed to
> catch earlier in the process, so you may want to hold packaging for a
> bit until this is fully investigated.
>
> Sorry for the inconvenience.
Hi,
Even with the patch for CVE-2015-3258 in version 1.0.70 it was possible
to trigger an integer overflow leading to a heap-based buffer overflow
using the same vector (specially crafted line sizes).
The integer overflow has been assigned CVE-2015-3279 and is fixed in
version 1.0.71. Apart from that, the patch also hardens against
possible crashes due to missing calloc() success checks.
Patch:
http://bzr.linuxfoundation.org/loggerhead/openprinting/cups-filters/revision/7365
Red Hat bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1238990
Thanks,
--
Stefan Cornelius / Red Hat Product Security
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