9.3 - RHSA-2014:0018

Executive Summary

Summary
Title	libXfont security update

Informations
Name	RHSA-2014:0018	First vendor Publication	2014-01-10
Vendor	RedHat	Last vendor Modification	2014-01-10
Severity (Vendor)	Important	Revision	01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score	NA
Base Score	NA	Environmental Score	NA
impact SubScore	NA	Temporal Score	NA
Exploitabality Sub Score	NA

Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score	9.3	Attack Range	Network
Cvss Impact Score	10	Attack Complexity	Medium
Cvss Expoit Score	8.6	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

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

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2014-0018.html

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-119	Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21257

Oval ID:	oval:org.mitre.oval:def:21257
Title:	DSA-2838-1 libxfont - buffer overflow
Description:	It was discovered that a buffer overflow in the processing of Glyph Bitmap Distribution fonts (BDF) could result in the execution of arbitrary code.
Family:	unix	Class:	patch
Reference(s):	DSA-2838-1 CVE-2013-6462	Version:	5
Platform(s):	Debian GNU/Linux 6.0 Debian GNU/Linux 7 Debian GNU/kFreeBSD 6.0 Debian GNU/kFreeBSD 7	Product(s):	libxfont
Definition Synopsis:
Debian 6.0 release section Debian 6.0 is installed GNU/Linux or GNU/kFreeBSD kernel Debian GNU/Linux is installed AND Debian GNU/kFreeBSD is installed AND libxfont DPKG is earlier than 1:1.4.1-4 AND Debian 7.x release section Debian 7 is installed GNU/Linux or GNU/kFreeBSD kernel Debian GNU/Linux is installed AND Debian GNU/kFreeBSD is installed AND libxfont DPKG is earlier than 1:1.4.5-3

Definition Id: oval:org.mitre.oval:def:21406

Oval ID:	oval:org.mitre.oval:def:21406
Title:	USN-2078-1 -- libxfont vulnerability
Description:	libXfont could be made to crash or run programs as an administrator if it opened a specially crafted font file.
Family:	unix	Class:	patch
Reference(s):	USN-2078-1 CVE-2013-6462	Version:	5
Platform(s):	Ubuntu 13.10 Ubuntu 13.04 Ubuntu 12.10 Ubuntu 12.04 Ubuntu 10.04	Product(s):	libxfont
Definition Synopsis:
Ubuntu 13.10 release section Ubuntu 13.10 is installed AND libxfont1 DPKG is earlier than 1:1.4.6-1ubuntu0.1 AND Ubuntu 13.04 release section Ubuntu 13.04 is installed AND libxfont1 DPKG is earlier than 1:1.4.5-2ubuntu0.13.04.1 AND Ubuntu 12.10 release section Ubuntu 12.10 is installed AND libxfont1 DPKG is earlier than 1:1.4.5-2ubuntu0.12.10.1 AND Ubuntu 12.04 release section Ubuntu 12.04 is installed AND libxfont1 DPKG is earlier than 1:1.4.4-1ubuntu0.1 AND Ubuntu 10.04 release section Ubuntu 10.04 is installed AND libxfont1 DPKG is earlier than 1:1.4.1-1ubuntu0.2

Definition Id: oval:org.mitre.oval:def:21902

Oval ID:	oval:org.mitre.oval:def:21902
Title:	RHSA-2014:0018: libXfont security update (Important)
Description:	Stack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string in a character name in a BDF font file.
Family:	unix	Class:	patch
Reference(s):	RHSA-2014:0018-00 CESA-2014:0018 CVE-2013-6462	Version:	6
Platform(s):	Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 CentOS Linux 5 CentOS Linux 6	Product(s):	libXfont
Definition Synopsis:
Operation system section Redhat 5 or Centos 5 release The operating system installed on the system is Red Hat Enterprise Linux 5 AND The operating system installed on the system is CentOS Linux 5.x Packages section libXfont-devel is earlier than 0:1.2.2-1.0.5.el5_10 AND libXfont is earlier than 0:1.2.2-1.0.5.el5_10 AND Operation system section Redhat 6 or Centos 6 release The operating system installed on the system is Red Hat Enterprise Linux 6 AND The operating system installed on the system is CentOS Linux 6.x Packages section libXfont-devel is earlier than 0:1.4.5-3.el6_5 AND libXfont is earlier than 0:1.4.5-3.el6_5

Definition Id: oval:org.mitre.oval:def:23621

Oval ID:	oval:org.mitre.oval:def:23621
Title:	DEPRECATED: ELSA-2014:0018: libXfont security update (Important)
Description:	Stack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string in a character name in a BDF font file.
Family:	unix	Class:	patch
Reference(s):	ELSA-2014:0018-00 CVE-2013-6462	Version:	7
Platform(s):	Oracle Linux 5 Oracle Linux 6	Product(s):	libXfont
Definition Synopsis:
rpm test Oracle Linux 5.x AND rpm test libXfont-devel is earlier than 0:1.2.2-1.0.5.el5_10 AND libXfont is earlier than 0:1.2.2-1.0.5.el5_10 OR rpm test Oracle Linux 6.x AND rpm test libXfont-devel is earlier than 0:1.4.5-3.el6_5 AND libXfont is earlier than 0:1.4.5-3.el6_5

Definition Id: oval:org.mitre.oval:def:24123

Oval ID:	oval:org.mitre.oval:def:24123
Title:	ELSA-2014:0018: libXfont security update (Important)
Description:	Stack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string in a character name in a BDF font file.
Family:	unix	Class:	patch
Reference(s):	ELSA-2014:0018-00 CVE-2013-6462	Version:	6
Platform(s):	Oracle Linux 5 Oracle Linux 6	Product(s):	libXfont
Definition Synopsis:
rpm test Oracle Linux 5.x AND rpm test libXfont-devel is earlier than 0:1.2.2-1.0.5.el5_10 AND libXfont is earlier than 0:1.2.2-1.0.5.el5_10 OR rpm test Oracle Linux 6.x AND rpm test libXfont-devel is earlier than 0:1.4.5-3.el6_5 AND libXfont is earlier than 0:1.4.5-3.el6_5

Definition Id: oval:org.mitre.oval:def:25384

Oval ID:	oval:org.mitre.oval:def:25384
Title:	SUSE-SU-2014:0219-1 -- Security update for xorg-x11
Description:	This update fixes a stack buffer overflow in xorg-x11 in the bdfReadCharacters() function. CVE-2013-6462 has been assigned to this issue. Security Issue reference: * CVE-2013-6462 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6462 >
Family:	unix	Class:	patch
Reference(s):	SUSE-SU-2014:0219-1 CVE-2013-6462	Version:	3
Platform(s):	SUSE Linux Enterprise Server 11 SUSE Linux Enterprise Desktop 11	Product(s):	xorg-x11
Definition Synopsis:
SUSE Linux Enterprise Server 11 and SUSE Linux Enterprise Desktop 11 release section Operation system section SUSE Linux Enterprise Server 11.x is installed AND SUSE Linux Enterprise Desktop 11.x is installed Packages match section xorg-x11-libs RPM is earlier than 0:7.4-8.26.40.1 AND xorg-x11-libs-32bit RPM is earlier than 0:7.4-8.26.40.1 AND SUSE Linux Enterprise Desktop 11 release section SUSE Linux Enterprise Desktop 11.x is installed AND xorg-x11-devel RPM is earlier than 0:7.4-8.26.40.1

Definition Id: oval:org.mitre.oval:def:27335

Oval ID:	oval:org.mitre.oval:def:27335
Title:	DEPRECATED: ELSA-2014-0018 -- libxfont security update (important)
Description:	[1.4.5-3] - cve-2013-6462.patch: sscanf overflow (bug 1049684) - sscanf-hardening.patch: Some other sscanf hardening fixes (1049684)
Family:	unix	Class:	patch
Reference(s):	ELSA-2014-0018 CVE-2013-6462	Version:	4
Platform(s):	Oracle Linux 5 Oracle Linux 6	Product(s):	libXfont
Definition Synopsis:
Oracle Linux 5 release section Oracle Linux 5.x Packages match section libXfont is earlier than 0:1.2.2-1.0.5.el5_10 AND libXfont-devel is earlier than 0:1.2.2-1.0.5.el5_10 AND Oracle Linux 6 release section Oracle Linux 6.x Packages match section libXfont is earlier than 0:1.4.5-3.el6_5 AND libXfont-devel is earlier than 0:1.4.5-3.el6_5

CPE : Common Platform Enumeration

Type	Description	Count
Application	X Libxfont cpe:2.3:a:x:libxfont:1.4.6:::::::* cpe:2.3:a:x:libxfont:1.4.5:::::::* cpe:2.3:a:x:libxfont:1.4.4:::::::* cpe:2.3:a:x:libxfont:1.4.3:::::::* cpe:2.3:a:x:libxfont:1.4.2:::::::* cpe:2.3:a:x:libxfont:1.4.1:::::::* cpe:2.3:a:x:libxfont:1.4.0:::::::* cpe:2.3:a:x:libxfont:1.3.4:::::::* cpe:2.3:a:x:libxfont:1.3.3:::::::* cpe:2.3:a:x:libxfont:1.3.2:::::::* cpe:2.3:a:x:libxfont:1.3.1:::::::* cpe:2.3:a:x:libxfont:1.3.0:::::::* cpe:2.3:a:x:libxfont:1.2.9:::::::* cpe:2.3:a:x:libxfont:1.2.8:::::::* cpe:2.3:a:x:libxfont:1.2.7:::::::* cpe:2.3:a:x:libxfont:1.2.6:::::::* cpe:2.3:a:x:libxfont:1.2.5:::::::* cpe:2.3:a:x:libxfont:1.2.4:::::::* cpe:2.3:a:x:libxfont:1.2.3:::::::* cpe:2.3:a:x:libxfont:1.2.2:::::::* cpe:2.3:a:x:libxfont:1.2.1:::::::* cpe:2.3:a:x:libxfont:1.2.0:::::::* cpe:2.3:a:x:libxfont:1.1.0:::::::*	23

Information Assurance Vulnerability Management (IAVM)

Date	Description
2014-04-17	IAVM : 2014-A-0058 - Multiple Vulnerabilities in Oracle & Sun Systems Product Suite Severity : Category I - VMSKEY : V0049579

Nessus® Vulnerability Scanner

Date	Description
2015-03-27	Name : The remote Fedora host is missing a security update. File : fedora_2015-3964.nasl - Type : ACT_GATHER_INFO
2015-03-27	Name : The remote Fedora host is missing a security update. File : fedora_2015-3948.nasl - Type : ACT_GATHER_INFO
2015-03-23	Name : The remote Fedora host is missing a security update. File : fedora_2015-3953.nasl - Type : ACT_GATHER_INFO
2015-01-19	Name : The remote Solaris system is missing a security patch for third-party software. File : solaris11_xorg_20140326.nasl - Type : ACT_GATHER_INFO
2014-11-26	Name : The remote OracleVM host is missing a security update. File : oraclevm_OVMSA-2014-0080.nasl - Type : ACT_GATHER_INFO
2014-11-08	Name : The remote Red Hat host is missing a security update. File : redhat-RHSA-2014-0041.nasl - Type : ACT_GATHER_INFO
2014-06-13	Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-45.nasl - Type : ACT_GATHER_INFO
2014-04-17	Name : The remote host has a version of Oracle Secure Global Desktop that is affecte... File : oracle_secure_global_desktop_apr_2014_cpu.nasl - Type : ACT_GATHER_INFO
2014-02-23	Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201402-23.nasl - Type : ACT_GATHER_INFO
2014-02-12	Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_xorg-x11-devel-140108.nasl - Type : ACT_GATHER_INFO
2014-02-05	Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2014-282.nasl - Type : ACT_GATHER_INFO
2014-01-29	Name : The remote Fedora host is missing a security update. File : fedora_2014-0467.nasl - Type : ACT_GATHER_INFO
2014-01-22	Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2014-013.nasl - Type : ACT_GATHER_INFO
2014-01-14	Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2014-013-01.nasl - Type : ACT_GATHER_INFO
2014-01-13	Name : The remote Fedora host is missing a security update. File : fedora_2014-0443.nasl - Type : ACT_GATHER_INFO
2014-01-12	Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20140110_libXfont_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2014-01-12	Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0018.nasl - Type : ACT_GATHER_INFO
2014-01-12	Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-0018.nasl - Type : ACT_GATHER_INFO
2014-01-12	Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2014-0018.nasl - Type : ACT_GATHER_INFO
2014-01-09	Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_28c575fa784e11e38249001cc0380077.nasl - Type : ACT_GATHER_INFO
2014-01-08	Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2078-1.nasl - Type : ACT_GATHER_INFO
2014-01-08	Name : The remote Debian host is missing a security-related update. File : debian_DSA-2838.nasl - Type : ACT_GATHER_INFO

Alert History

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Date	Informations
2014-02-17 11:57:45	Multiple Updates
2014-01-10 21:24:53	Multiple Updates
2014-01-10 13:19:05	First insertion

Global Informations

Type	Count
CWE ID(s)	1
Oval ID(s)	7
CPE ID(s)	23
IAVM(s)	1
Nessus® Exploit(s)	22

	Related
9.3	CVE-2013-6462
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9.3 - RHSA-2014:0018

Executive Summary

Security-Database Scoring CVSS v3

Security-Database Scoring CVSS v2

Detail

Original Source

CWE : Common Weakness Enumeration

OVAL Definitions

CPE : Common Platform Enumeration

Information Assurance Vulnerability Management (IAVM)

Nessus® Vulnerability Scanner

Alert History

Global Informations

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