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Date: Thu, 3 Jun 2010 14:42:52 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>,
        Panu Matilainen <pmatilai@...hat.com>,
        Jindrich Novy <jnovy@...hat.com>, Florian Festi <ffesti@...hat.com>,
        Matt McCutchen <matt@...tmccutchen.net>
Subject: Re: CVE Request -- rpm -- Fails to remove the
 SUID/SGID bits on package upgrade (RH BZ#598775)

----- "Jan Lieskovsky" <jlieskov@...hat.com> wrote:

> 
> Jan Lieskovsky wrote:
> > Hi Steve, vendors,
> > 
> >    Matt McCutchen pointed out a deficiency in the way rpm handled rpm
> >    package upgrades -- it failed to clear out the SUID/SGID bits of the
> >    old file by file replacement when privileged user performed package
> >    upgrade. Under certain circumstances, a local, authenticated user
> >    could use this flaw to escalate their privileges.
> 
> Maybe obvious and natural conclusion from previous post already, but Panu
> clarified yet, similar deficiency holds for dealing with posix file
> capabilities and SELinux contexts, i.e. they are not cleared after pkg
> upgrade. Not sure second CVE is needed for this, but if one is enough,
> wanted to explicitly mention this, so it can be described in the text of
> the CVE too.
> 

I'm going to give both of these the same CVE id. The issues are very
related, and I had look at the CWE guide, they both seem to fall under
"CWE-281: Improper Preservation of Permissions"

Steve, feel free to overrule me on this one.

CVE-2010-2059

Thanks.

-- 
    JB

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