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

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0050
                      Moderate: exim security update
                              19 January 2011

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           exim
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 5
                   Red Hat Enterprise Linux WS/Desktop 5
                   Red Hat Enterprise Linux Desktop 4
                   Red Hat Enterprise Linux AS/ES/WS 4
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-4345  

Reference:         ESB-2010.1119

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2011-0153.html

- --------------------------BEGIN INCLUDED TEXT--------------------

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

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

Synopsis:          Moderate: exim security update
Advisory ID:       RHSA-2011:0153-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-0153.html
Issue date:        2011-01-17
CVE Names:         CVE-2010-4345 
=====================================================================

1. Summary:

Updated exim packages that fix one security issue are now available for Red
Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having moderate
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 AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

Exim is a mail transport agent (MTA) developed at the University of
Cambridge for use on UNIX systems connected to the Internet.

A privilege escalation flaw was discovered in Exim. If an attacker were
able to gain access to the "exim" user, they could cause Exim to execute
arbitrary commands as the root user. (CVE-2010-4345)

This update adds a new configuration file, "/etc/exim/trusted-configs". To
prevent Exim from running arbitrary commands as root, Exim will now drop
privileges when run with a configuration file not listed as trusted. This
could break backwards compatibility with some Exim configurations, as the
trusted-configs file only trusts "/etc/exim/exim.conf" and
"/etc/exim/exim4.conf" by default. If you are using a configuration file
not listed in the new trusted-configs file, you will need to add it
manually.

Additionally, Exim will no longer allow a user to execute exim as root with
the -D command line option to override macro definitions. All macro
definitions that require root permissions must now reside in a trusted
configuration file.

Users of Exim are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, the exim daemon will be restarted automatically.

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/):

662012 - CVE-2010-4345 exim privilege escalation

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/exim-4.43-1.RHEL4.5.el4_8.3.src.rpm

i386:
exim-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.i386.rpm

ia64:
exim-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.ia64.rpm

ppc:
exim-4.43-1.RHEL4.5.el4_8.3.ppc.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.ppc.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.ppc.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.ppc.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.ppc.rpm

s390:
exim-4.43-1.RHEL4.5.el4_8.3.s390.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.s390.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.s390.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.s390.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.s390.rpm

s390x:
exim-4.43-1.RHEL4.5.el4_8.3.s390x.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.s390x.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.s390x.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.s390x.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.s390x.rpm

x86_64:
exim-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/exim-4.43-1.RHEL4.5.el4_8.3.src.rpm

i386:
exim-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.i386.rpm

x86_64:
exim-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/exim-4.43-1.RHEL4.5.el4_8.3.src.rpm

i386:
exim-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.i386.rpm

ia64:
exim-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.ia64.rpm

x86_64:
exim-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/exim-4.43-1.RHEL4.5.el4_8.3.src.rpm

i386:
exim-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.i386.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.i386.rpm

ia64:
exim-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.ia64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.ia64.rpm

x86_64:
exim-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-debuginfo-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-doc-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-mon-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm
exim-sa-4.43-1.RHEL4.5.el4_8.3.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/exim-4.63-5.el5_6.2.src.rpm

i386:
exim-4.63-5.el5_6.2.i386.rpm
exim-debuginfo-4.63-5.el5_6.2.i386.rpm
exim-mon-4.63-5.el5_6.2.i386.rpm
exim-sa-4.63-5.el5_6.2.i386.rpm

x86_64:
exim-4.63-5.el5_6.2.x86_64.rpm
exim-debuginfo-4.63-5.el5_6.2.x86_64.rpm
exim-mon-4.63-5.el5_6.2.x86_64.rpm
exim-sa-4.63-5.el5_6.2.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/exim-4.63-5.el5_6.2.src.rpm

i386:
exim-4.63-5.el5_6.2.i386.rpm
exim-debuginfo-4.63-5.el5_6.2.i386.rpm
exim-mon-4.63-5.el5_6.2.i386.rpm
exim-sa-4.63-5.el5_6.2.i386.rpm

ia64:
exim-4.63-5.el5_6.2.ia64.rpm
exim-debuginfo-4.63-5.el5_6.2.ia64.rpm
exim-mon-4.63-5.el5_6.2.ia64.rpm
exim-sa-4.63-5.el5_6.2.ia64.rpm

ppc:
exim-4.63-5.el5_6.2.ppc.rpm
exim-debuginfo-4.63-5.el5_6.2.ppc.rpm
exim-mon-4.63-5.el5_6.2.ppc.rpm
exim-sa-4.63-5.el5_6.2.ppc.rpm

s390x:
exim-4.63-5.el5_6.2.s390x.rpm
exim-debuginfo-4.63-5.el5_6.2.s390x.rpm
exim-mon-4.63-5.el5_6.2.s390x.rpm
exim-sa-4.63-5.el5_6.2.s390x.rpm

x86_64:
exim-4.63-5.el5_6.2.x86_64.rpm
exim-debuginfo-4.63-5.el5_6.2.x86_64.rpm
exim-mon-4.63-5.el5_6.2.x86_64.rpm
exim-sa-4.63-5.el5_6.2.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-4345.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2011 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFNNIzyXlSAg2UNWIIRAsu1AJwMszLDkFQwpwa/yL4LtJ2Wyt5tgwCgtcNK
lKnIVz/svffRBXU4Ydae2/I=
=eyjY
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iD8DBQFNNiam/iFOrG6YcBERAsoSAJ4y/kp9bh5N+9+kB750petJ4lIiCwCfWexF
9LH1GdxGzojMQQ4Nil++iZI=
=NOWh
-----END PGP SIGNATURE-----