oss-security - CVE Request -- rpm -- Fails to remove the SUID/SGID bits on package upgrade (RH BZ#598775)

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Date: Wed, 02 Jun 2010 13:43:03 +0200
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...us.mitre.org>,
        oss-security <oss-security@...ts.openwall.com>
CC: Panu Matilainen <pmatilai@...hat.com>, Jindrich Novy <jnovy@...hat.com>,
        Florian Festi <ffesti@...hat.com>,
        Matt McCutchen <matt@...tmccutchen.net>
Subject: CVE Request -- rpm -- Fails to remove the SUID/SGID bits on package
 upgrade (RH BZ#598775)

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.

Red Hat Bugzilla entry:
   [1] https://bugzilla.redhat.com/show_bug.cgi?id=598775

Upstream changeset:
   [2] http://rpm.org/gitweb?p=rpm.git;a=commit;h=ca2d6b2b484f1501eafdde02e1688409340d2383

Could you allocate CVE id for this?

Thanks && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

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