An updated xinetd package that fixes one security issue is now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score,

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

Synopsis:          Moderate: xinetd security update
Advisory ID:       RHSA-2013:1409-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2013:1409.html
Issue date:        2013-10-07
Keywords:          xinetd
CVE Names:         CVE-2013-4342 
====================================================================
1. Summary:

An updated xinetd package that fixes one security issue is now available
for Red Hat Enterprise Linux 5 and 6.

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 Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

The xinetd package provides a secure replacement for inetd, the Internet
services daemon. xinetd provides access control for all services based on
the address of the remote host and/or on time of access, and can prevent
denial-of-access attacks.

It was found that xinetd ignored the user and group configuration
directives for services running under the tcpmux-server service. This flaw
could cause the associated services to run as root. If there was a flaw in
such a service, a remote attacker could use it to execute arbitrary code
with the privileges of the root user. (CVE-2013-4342)

Red Hat would like to thank Thomas Swan of FedEx for reporting this issue.

All xinetd users are advised to 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
https://access.redhat.com/site/articles/11258

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

1006100 - CVE-2013-4342 xinetd: ignores user and group directives for tcpmux services

6. Package List:

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

Source:

i386:
xinetd-2.3.14-20.el5_10.i386.rpm
xinetd-debuginfo-2.3.14-20.el5_10.i386.rpm

x86_64:
xinetd-2.3.14-20.el5_10.x86_64.rpm
xinetd-debuginfo-2.3.14-20.el5_10.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
xinetd-2.3.14-20.el5_10.i386.rpm
xinetd-debuginfo-2.3.14-20.el5_10.i386.rpm

ia64:
xinetd-2.3.14-20.el5_10.ia64.rpm
xinetd-debuginfo-2.3.14-20.el5_10.ia64.rpm

ppc:
xinetd-2.3.14-20.el5_10.ppc.rpm
xinetd-debuginfo-2.3.14-20.el5_10.ppc.rpm

s390x:
xinetd-2.3.14-20.el5_10.s390x.rpm
xinetd-debuginfo-2.3.14-20.el5_10.s390x.rpm

x86_64:
xinetd-2.3.14-20.el5_10.x86_64.rpm
xinetd-debuginfo-2.3.14-20.el5_10.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
xinetd-2.3.14-39.el6_4.i686.rpm
xinetd-debuginfo-2.3.14-39.el6_4.i686.rpm

x86_64:
xinetd-2.3.14-39.el6_4.x86_64.rpm
xinetd-debuginfo-2.3.14-39.el6_4.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:

x86_64:
xinetd-2.3.14-39.el6_4.x86_64.rpm
xinetd-debuginfo-2.3.14-39.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
xinetd-2.3.14-39.el6_4.i686.rpm
xinetd-debuginfo-2.3.14-39.el6_4.i686.rpm

ppc64:
xinetd-2.3.14-39.el6_4.ppc64.rpm
xinetd-debuginfo-2.3.14-39.el6_4.ppc64.rpm

s390x:
xinetd-2.3.14-39.el6_4.s390x.rpm
xinetd-debuginfo-2.3.14-39.el6_4.s390x.rpm

x86_64:
xinetd-2.3.14-39.el6_4.x86_64.rpm
xinetd-debuginfo-2.3.14-39.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
xinetd-2.3.14-39.el6_4.i686.rpm
xinetd-debuginfo-2.3.14-39.el6_4.i686.rpm

x86_64:
xinetd-2.3.14-39.el6_4.x86_64.rpm
xinetd-debuginfo-2.3.14-39.el6_4.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://access.redhat.com/security/cve/CVE-2013-4342
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2013 Red Hat, Inc.
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