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Date: Thu, 2 Apr 2009 16:54:01 +0200
From: Tomas Hoger <thoger@...hat.com>
To: oss-security@...ts.openwall.com
Cc: coley@...us.mitre.org
Subject: Re: CVE request -- zsh, XFree86-xfs/xorg-x11-xfs,
screen
On Tue, 31 Mar 2009 21:12:25 -0400 (EDT) "Steven M. Christey"
<coley@...us.mitre.org> wrote:
> > 3, screen: Unsafe usage of temporary file
> > References:
> > https://bugs.launchpad.net/ubuntu/+source/screen/+bug/315993
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521123
> > https://bugzilla.redhat.com/show_bug.cgi?id=492104
Based on the additional comments in the upstream bug:
https://savannah.gnu.org/bugs/index.php?25296
> CVE-2009-1214 - world-readable permissions
This should be expected and intended behavior.
> CVE-2009-1215 - symlink following
There should be no real symlink issue for /tmp/screen-exchange in the
upstream version. Debian screen version seems to have a patch, that
introduces a symlink flaw, but it does not depend on any race
condition. Description for this one may need to be updated.
--
Tomas Hoger / Red Hat Security Response Team
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