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Date: Mon, 6 Oct 2008 11:18:14 +0200
From: Tomas Hoger <>
        Robert Buchholz
Subject: Re: Re: libxml2 "ampproblem" DoS

On Fri, 3 Oct 2008 17:09:15 -0400 (EDT) "Steven M. Christey"
<> wrote:

> > > The malicious XML file can be found on
> > >
> > >
> > > I'm not sure if and how this is related to CVE-2008-3281.
> >
> >   It's unrelated, the patch is attached to the bug, only 2.7.x is
> > affected and I will release 2.7.2 within a couple of hours.
> Use CVE-2008-4422

Looks like this is also duplicate of previously assigned:

Name: CVE-2008-4409
Status: Candidate
Assigned: 20081003
Reference: MLIST:[oss-security] 20081002 libxml2 "ampproblem" DoS
Reference: URL:
Reference: CONFIRM:

libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities
definitions" in entities, which allows context-dependent attackers to
cause a denial of service (memory consumption and application crash),
as demonstrated by use of xmllint on a certain XML document, a
different vulnerability than CVE-2003-1564 and CVE-2008-3281.

CVE-2008-4409 is public on NVD site, CVE-2008-4422 in Gentoo BZ and
here...  CVE-2008-4422 should probably be rejected.

Tomas Hoger / Red Hat Security Response Team

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