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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: sudo security update
Advisory ID:       RHSA-2010:0675-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0675.html
Issue date:        2010-09-07
CVE Names:         CVE-2010-2956 
=====================================================================

1. Summary:

An updated sudo package that fixes one security issue is now available for
Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

The sudo (superuser do) utility allows system administrators to give
certain users the ability to run commands as root.

A flaw was found in the way sudo handled Runas specifications containing
both a user and a group list. If a local user were authorized by the
sudoers file to perform their sudo commands with the privileges of a
specified user and group, they could use this flaw to run those commands
with the privileges of either an arbitrary user or group on the system.
(CVE-2010-2956)

Red Hat would like to thank Markus Wuethrich of Swiss Post - PostFinance
for reporting this issue.

Users of sudo should upgrade to this updated package, which contains a
backported patch to correct this issue.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

628628 - CVE-2010-2956 sudo: incorrect handling of RunAs specification with both user and group lists

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/sudo-1.7.2p1-8.el5_5.src.rpm

i386:
sudo-1.7.2p1-8.el5_5.i386.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.i386.rpm

x86_64:
sudo-1.7.2p1-8.el5_5.x86_64.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/sudo-1.7.2p1-8.el5_5.src.rpm

i386:
sudo-1.7.2p1-8.el5_5.i386.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.i386.rpm

ia64:
sudo-1.7.2p1-8.el5_5.ia64.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.ia64.rpm

ppc:
sudo-1.7.2p1-8.el5_5.ppc.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.ppc.rpm

s390x:
sudo-1.7.2p1-8.el5_5.s390x.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.s390x.rpm

x86_64:
sudo-1.7.2p1-8.el5_5.x86_64.rpm
sudo-debuginfo-1.7.2p1-8.el5_5.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-2956.html
http://www.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2010 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

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-----END PGP SIGNATURE-----

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