Alerts This Week
Warning Icon 1 537
Alerts This Week
Warning Icon 1 537

Critical libXfont Stack Overflow in Red Hat Enterprise Linux 5 and 6

Calendar Jan 10, 2014 • User Avatar LinuxSecurity Advisories
5 - 9 min read
Redhat Large Esm H500
Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux important impact local user threat stack-based overflow libXfont update
Updated libXfont 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) 
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Important: libXfont security update
Advisory ID:       RHSA-2014:0018-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2014:0018.html
Issue date:        2014-01-10
CVE Names:         CVE-2013-6462 
====================================================================
1. Summary:

Updated libXfont 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, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

The libXfont packages provide the X.Org libXfont runtime library. X.Org is
an open source implementation of the X Window System.

A stack-based buffer overflow flaw was found in the way the libXfont
library parsed Glyph Bitmap Distribution Format (BDF) fonts. A malicious,
local user could exploit this issue to potentially execute arbitrary code
with the privileges of the X.Org server. (CVE-2013-6462)

Users of libXfont should upgrade to these updated packages, which contain
a backported patch to resolve this issue. All running X.Org server
instances must be restarted for the update to take effect.

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/kb/docs/DOC-11259

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

1048044 - CVE-2013-6462 libXfont: stack-based buffer overflow flaw when parsing Glyph Bitmap Distribution Format (BDF) fonts

6. Package List:

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

Source:

i386:
libXfont-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm

x86_64:
libXfont-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-1.2.2-1.0.5.el5_10.x86_64.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:

i386:
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm

x86_64:
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.x86_64.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
libXfont-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm

ia64:
libXfont-1.2.2-1.0.5.el5_10.ia64.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.ia64.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.ia64.rpm

ppc:
libXfont-1.2.2-1.0.5.el5_10.ppc.rpm
libXfont-1.2.2-1.0.5.el5_10.ppc64.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.ppc.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.ppc64.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.ppc.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.ppc64.rpm

s390x:
libXfont-1.2.2-1.0.5.el5_10.s390.rpm
libXfont-1.2.2-1.0.5.el5_10.s390x.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.s390.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.s390x.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.s390.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.s390x.rpm

x86_64:
libXfont-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-1.2.2-1.0.5.el5_10.x86_64.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-debuginfo-1.2.2-1.0.5.el5_10.x86_64.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm
libXfont-devel-1.2.2-1.0.5.el5_10.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm

x86_64:
libXfont-1.4.5-3.el6_5.x86_64.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm

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

Source:

i386:
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm

x86_64:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.x86_64.rpm

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

Source:

x86_64:
libXfont-1.4.5-3.el6_5.x86_64.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm

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

Source:

x86_64:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm

ppc64:
libXfont-1.4.5-3.el6_5.ppc64.rpm
libXfont-debuginfo-1.4.5-3.el6_5.ppc64.rpm

s390x:
libXfont-1.4.5-3.el6_5.s390x.rpm
libXfont-debuginfo-1.4.5-3.el6_5.s390x.rpm

x86_64:
libXfont-1.4.5-3.el6_5.x86_64.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm

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

Source:

i386:
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm

ppc64:
libXfont-1.4.5-3.el6_5.ppc.rpm
libXfont-debuginfo-1.4.5-3.el6_5.ppc.rpm
libXfont-debuginfo-1.4.5-3.el6_5.ppc64.rpm
libXfont-devel-1.4.5-3.el6_5.ppc.rpm
libXfont-devel-1.4.5-3.el6_5.ppc64.rpm

s390x:
libXfont-1.4.5-3.el6_5.s390.rpm
libXfont-debuginfo-1.4.5-3.el6_5.s390.rpm
libXfont-debuginfo-1.4.5-3.el6_5.s390x.rpm
libXfont-devel-1.4.5-3.el6_5.s390.rpm
libXfont-devel-1.4.5-3.el6_5.s390x.rpm

x86_64:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm

x86_64:
libXfont-1.4.5-3.el6_5.x86_64.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm

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

Source:

i386:
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm

x86_64:
libXfont-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.i686.rpm
libXfont-debuginfo-1.4.5-3.el6_5.x86_64.rpm
libXfont-devel-1.4.5-3.el6_5.i686.rpm
libXfont-devel-1.4.5-3.el6_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://access.redhat.com/security/team/key/#package

7. References:

https://access.redhat.com/security/cve/CVE-2013-6462
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2014 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFSz8HSXlSAg2UNWIIRAvo5AJ4976ATNgp8mmoyRgObDFnCvOP4zACfYWJc
f9VhkwpGzE3y3jtSD9fupVg=T7Wm
-----END PGP SIGNATURE-----


-- 
Enterprise-watch-list mailing list
This email address is being protected from spambots. You need JavaScript enabled to view it.

Critical libXfont Stack Overflow in Red Hat Enterprise Linux 5 and 6

red hat
Calendar Grey January 10, 2014
Dist Redhat Esm H88
Explore the crucial libXfont security patch for Red Hat Enterprise Linux versions 5 and 6, classified as significant.
Updated libXfont packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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/kb/docs/DOC-11259

Summary

The libXfont packages provide the X.Org libXfont runtime library. X.Org is an open source implementation of the X Window System.
A stack-based buffer overflow flaw was found in the way the libXfont library parsed Glyph Bitmap Distribution Format (BDF) fonts. A malicious, local user could exploit this issue to potentially execute arbitrary code with the privileges of the X.Org server. (CVE-2013-6462)
Users of libXfont should upgrade to these updated packages, which contain a backported patch to resolve this issue. All running X.Org server instances must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux important impact local user threat stack-based overflow libXfont update

References

https://access.redhat.com/security/cve/CVE-2013-6462 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: libXfont-1.2.2-1.0.5.el5_10.i386.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm
x86_64: libXfont-1.2.2-1.0.5.el5_10.i386.rpm libXfont-1.2.2-1.0.5.el5_10.x86_64.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm
x86_64: libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.x86_64.rpm libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm libXfont-devel-1.2.2-1.0.5.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: libXfont-1.2.2-1.0.5.el5_10.i386.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.i386.rpm libXfont-devel-1.2.2-1.0.5.el5_10.i386.rpm
ia64: libXfont-1.2.2-1.0.5.el5_10.ia64.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.ia64.rpm libXfont-devel-1.2.2-1.0.5.el5_10.ia64.rpm
ppc: libXfont-1.2.2-1.0.5.el5_10.ppc.rpm libXfont-1.2.2-1.0.5.el5_10.ppc64.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.ppc.rpm libXfont-debuginfo-1.2.2-1.0.5.el5_10.ppc64.rpm libXfont-devel-1.2.2-1.0.5.el5_10.ppc.rpm libXfont-devel-1.2.2-1.0.5.el5_10.ppc64.rpm
s390x: libXfont-1.2.2-1.0.5.el5_10.s390.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:0018-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0018.html
Issue date: 2014-01-10

Topic

Updated libXfont packages that fix one security issue are now availablefor Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux important impact local user threat stack-based overflow libXfont update

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, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1048044 - CVE-2013-6462 libXfont: stack-based buffer overflow flaw when parsing Glyph Bitmap Distribution Format (BDF) fonts

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here