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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