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Date: Wed, 8 Feb 2017 10:27:46 +1030
From: Doran Moppert <dmoppert@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: XXE in Openpyxl
On Feb 07 2017, Sébastien Delafond wrote:
> the Debian Security Team would like to request a CVE for an XML XEE
> discovered in Openpyxl by Marcin Ulikowski from F-Secure; Openpyxl
> resolves external entities by default:
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442
> https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1
This is yet another instance of CVE-2016-9318. As already observed on
the Debian tracker, disabling entity resolution altogether is probably
going to make openpyxl fail on well-formed Excel documents using
standard entities such as <.
--
Doran Moppert
Red Hat Product Security
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