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Red Hat Security Advisory 2013-1426-01

Red Hat Security Advisory 2013-1426-01
Posted Oct 16, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1426-01 - X.Org is an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. A use-after-free flaw was found in the way the X.Org server handled ImageText requests. A malicious, authorized client could use this flaw to crash the X.Org server or, potentially, execute arbitrary code with root privileges.

tags | advisory, arbitrary, root
systems | linux, redhat
advisories | CVE-2013-4396
SHA-256 | d72ffb1f45e9412968049f5b566eaaed14e469d38fd22929209af914c61bb2d6
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Red Hat Security Advisory 2013-1426-01

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

Synopsis:          Important: xorg-x11-server security update
Advisory ID:       RHSA-2013:1426-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-1426.html
Issue date:        2013-10-15
CVE Names:         CVE-2013-4396 
=====================================================================

1. Summary:

Updated xorg-x11-server packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6.

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:

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

3. Description:

X.Org is an open source implementation of the X Window System. It provides
the basic low-level functionality that full-fledged graphical user
interfaces are designed upon.

A use-after-free flaw was found in the way the X.Org server handled
ImageText requests. A malicious, authorized client could use this flaw to
crash the X.Org server or, potentially, execute arbitrary code with root
privileges. (CVE-2013-4396)

Red Hat would like to thank the X.Org security team for reporting this
issue. Upstream acknowledges Pedro Ribeiro as the original reporter.

All xorg-x11-server users are advised to upgrade to these updated packages,
which contain 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/):

1014561 - CVE-2013-4396 xorg-x11-server: use-after-free flaw when handling ImageText requests

6. Package List:

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xorg-x11-server-1.1.1-48.101.el5_10.1.src.rpm

i386:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.i386.rpm

x86_64:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xorg-x11-server-1.1.1-48.101.el5_10.1.src.rpm

i386:
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.i386.rpm

x86_64:
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xorg-x11-server-1.1.1-48.101.el5_10.1.src.rpm

i386:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.i386.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.i386.rpm

ia64:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.ia64.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.ia64.rpm

ppc:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.ppc.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.ppc.rpm

s390x:
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.s390x.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.s390x.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.s390x.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.s390x.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.s390x.rpm

x86_64:
xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xephyr-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xnest-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xorg-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xvfb-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-Xvnc-source-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-debuginfo-1.1.1-48.101.el5_10.1.x86_64.rpm
xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm

x86_64:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm

noarch:
xorg-x11-server-source-1.13.0-11.1.el6_4.2.noarch.rpm

x86_64:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

noarch:
xorg-x11-server-source-1.13.0-11.1.el6_4.2.noarch.rpm

x86_64:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm

ppc64:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.ppc64.rpm

s390x:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.s390x.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.s390x.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.s390x.rpm

x86_64:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm

noarch:
xorg-x11-server-source-1.13.0-11.1.el6_4.2.noarch.rpm

ppc64:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.ppc.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.ppc64.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.ppc.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.ppc64.rpm

s390x:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.s390x.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.s390x.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.s390x.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.s390x.rpm

x86_64:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm

x86_64:
xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-common-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xorg-x11-server-1.13.0-11.1.el6_4.2.src.rpm

i386:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm

noarch:
xorg-x11-server-source-1.13.0-11.1.el6_4.2.noarch.rpm

x86_64:
xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-Xvfb-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-debuginfo-1.13.0-11.1.el6_4.2.x86_64.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.i686.rpm
xorg-x11-server-devel-1.13.0-11.1.el6_4.2.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-2013-4396.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2013 Red Hat, Inc.
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