Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title libxml2 security update
Informations
Name RHSA-2012:0018 First vendor Publication 2012-01-11
Vendor RedHat Last vendor Modification 2012-01-11
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:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated libxml2 packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

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 libxml2 library is a development toolbox providing the implementation of various XML standards.

A heap-based buffer overflow flaw was found in the way libxml2 decoded entity references with long names. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-3919)

An out-of-bounds memory read flaw was found in libxml2. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash. (CVE-2011-3905)

All users of libxml2 are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The desktop must be restarted (log out, then log back in) for this 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 (http://bugzilla.redhat.com/):

767387 - CVE-2011-3905 libxml2 out of bounds read 771896 - CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2012-0018.html

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
50 % CWE-125 Out-of-bounds Read

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:14504
 
Oval ID: oval:org.mitre.oval:def:14504
Title: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Description: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Family: windows Class: vulnerability
Reference(s): CVE-2011-3919
Version: 14
Platform(s): Microsoft Windows 7
Microsoft Windows Server 2008
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows XP
Microsoft Windows 2000
Product(s): Google Chrome
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:14761
 
Oval ID: oval:org.mitre.oval:def:14761
Title: libxml2, as used in Google Chrome before 16.0.912.63, allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.
Description: libxml2, as used in Google Chrome before 16.0.912.63, allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.
Family: windows Class: vulnerability
Reference(s): CVE-2011-3905
Version: 15
Platform(s): Microsoft Windows 7
Microsoft Windows Server 2008
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows XP
Microsoft Windows 2000
Product(s): Google Chrome
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:15165
 
Oval ID: oval:org.mitre.oval:def:15165
Title: DSA-2394-1 libxml2 -- several
Description: Many security problems had been fixed in libxml2, a popular library to handle XML data files. CVE-2011-3919: Jüri Aedla discovered a heap-based buffer overflow that allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. CVE-2011-0216: An Off-by-one error have been discoveried that allows remote attackers to execute arbitrary code or cause a denial of service. CVE-2011-2821: A memory corruption bug has been identified in libxml2's XPath engine. Through it, it is possible to an attacker allows cause a denial of service or possibly have unspecified other impact. This vulnerability does not affect the oldstable distribution. CVE-2011-2834: Yang Dingning discovered a double free vulnerability related to XPath handling. CVE-2011-3905: An out-of-bounds read vulnerability had been discovered, which allows remote attackers to cause a denial of service.
Family: unix Class: patch
Reference(s): DSA-2394-1
CVE-2011-0216
CVE-2011-2821
CVE-2011-2834
CVE-2011-3905
CVE-2011-3919
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:15446
 
Oval ID: oval:org.mitre.oval:def:15446
Title: USN-1334-1 -- libxml2 vulnerabilities
Description: libxml2: GNOME XML library Applications using libxml2 could be made to crash or run programs as your login if they opened a specially crafted file.
Family: unix Class: patch
Reference(s): USN-1334-1
CVE-2011-0216
CVE-2011-2821
CVE-2011-2834
CVE-2011-3905
CVE-2011-3919
Version: 5
Platform(s): Ubuntu 11.04
Ubuntu 11.10
Ubuntu 8.04
Ubuntu 10.04
Ubuntu 10.10
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21164
 
Oval ID: oval:org.mitre.oval:def:21164
Title: RHSA-2012:0017: libxml2 security update (Important)
Description: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Family: unix Class: patch
Reference(s): RHSA-2012:0017-01
CESA-2012:0017
CVE-2010-4008
CVE-2011-0216
CVE-2011-1944
CVE-2011-2834
CVE-2011-3905
CVE-2011-3919
Version: 81
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21409
 
Oval ID: oval:org.mitre.oval:def:21409
Title: RHSA-2012:0018: libxml2 security update (Important)
Description: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Family: unix Class: patch
Reference(s): RHSA-2012:0018-01
CESA-2012:0018
CVE-2011-3905
CVE-2011-3919
Version: 29
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23214
 
Oval ID: oval:org.mitre.oval:def:23214
Title: ELSA-2012:0017: libxml2 security update (Important)
Description: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Family: unix Class: patch
Reference(s): ELSA-2012:0017-01
CVE-2010-4008
CVE-2011-0216
CVE-2011-1944
CVE-2011-2834
CVE-2011-3905
CVE-2011-3919
Version: 29
Platform(s): Oracle Linux 5
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23538
 
Oval ID: oval:org.mitre.oval:def:23538
Title: ELSA-2012:0018: libxml2 security update (Important)
Description: Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Family: unix Class: patch
Reference(s): ELSA-2012:0018-01
CVE-2011-3905
CVE-2011-3919
Version: 13
Platform(s): Oracle Linux 6
Product(s): libxml2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27976
 
Oval ID: oval:org.mitre.oval:def:27976
Title: DEPRECATED: ELSA-2012-0018 -- libxml2 security update (important)
Description: [2.7.6-4.0.1.el6_2.1] - Update doc/redhat.gif in tarball - Add libxml2-oracle-enterprise.patch and update logos in tarball [2.7.6-4.el6_2.1] - Make sure the parser returns when getting a Stop order CVE-2011-3905 - Fix an allocation error when copying entities CVE-2011-3919 - Resolves: rhbz#771913
Family: unix Class: patch
Reference(s): ELSA-2012-0018
CVE-2011-3905
CVE-2011-3919
Version: 4
Platform(s): Oracle Linux 6
Product(s): libxml2
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1937
Os 122
Os 82
Os 3
Os 1
Os 1
Os 1
Os 1
Os 1

OpenVAS Exploits

Date Description
2012-10-03 Name : Fedora Update for libxml2 FEDORA-2012-13824
File : nvt/gb_fedora_2012_13824_libxml2_fc16.nasl
2012-09-27 Name : Fedora Update for libxml2 FEDORA-2012-13820
File : nvt/gb_fedora_2012_13820_libxml2_fc17.nasl
2012-08-02 Name : SuSE Update for libxml2 openSUSE-SU-2012:0107-1 (libxml2)
File : nvt/gb_suse_2012_0107_1.nasl
2012-07-30 Name : CentOS Update for libxml2 CESA-2012:0016 centos4
File : nvt/gb_CESA-2012_0016_libxml2_centos4.nasl
2012-07-30 Name : CentOS Update for libxml2 CESA-2012:0017 centos5
File : nvt/gb_CESA-2012_0017_libxml2_centos5.nasl
2012-07-30 Name : CentOS Update for libxml2 CESA-2012:0018 centos6
File : nvt/gb_CESA-2012_0018_libxml2_centos6.nasl
2012-07-13 Name : VMSA-2012-0012 VMware ESXi update addresses several security issues.
File : nvt/gb_VMSA-2012-0012.nasl
2012-07-09 Name : RedHat Update for libxml2 RHSA-2012:0018-01
File : nvt/gb_RHSA-2012_0018-01_libxml2.nasl
2012-05-18 Name : Mac OS X Multiple Vulnerabilities (2012-002)
File : nvt/gb_macosx_su12-002.nasl
2012-03-12 Name : Gentoo Security Advisory GLSA 201202-09 (libxml2)
File : nvt/glsa_201202_09.nasl
2012-03-12 Name : FreeBSD Ports: libxml2
File : nvt/freebsd_libxml22.nasl
2012-02-11 Name : Debian Security Advisory DSA 2394-1 (libxml2)
File : nvt/deb_2394_1.nasl
2012-01-20 Name : Mandriva Update for libxml2 MDVSA-2012:005 (libxml2)
File : nvt/gb_mandriva_MDVSA_2012_005.nasl
2012-01-20 Name : Ubuntu Update for libxml2 USN-1334-1
File : nvt/gb_ubuntu_USN_1334_1.nasl
2012-01-13 Name : RedHat Update for libxml2 RHSA-2012:0017-01
File : nvt/gb_RHSA-2012_0017-01_libxml2.nasl
2012-01-13 Name : RedHat Update for libxml2 RHSA-2012:0016-01
File : nvt/gb_RHSA-2012_0016-01_libxml2.nasl
2012-01-10 Name : Google Chrome Multiple Denial of Service Vulnerabilities - January12 (Linux)
File : nvt/gb_google_chrome_mult_dos_vuln_jan12_lin.nasl
2012-01-10 Name : Google Chrome Multiple Denial of Service Vulnerabilities - January12 (Mac OS X)
File : nvt/gb_google_chrome_mult_dos_vuln_jan12_macosx.nasl
2012-01-10 Name : Google Chrome Multiple Denial of Service Vulnerabilities - January12 (Windows)
File : nvt/gb_google_chrome_mult_dos_vuln_jan12_win.nasl
2011-12-16 Name : Mandriva Update for libxml2 MDVSA-2011:188 (libxml2)
File : nvt/gb_mandriva_MDVSA_2011_188.nasl
2011-12-15 Name : Google Chrome Multiple Vulnerabilities - December11 (Mac OS X)
File : nvt/secpod_google_chrome_mult_vuln_dec11_macosx.nasl
2011-12-15 Name : Google Chrome Multiple Vulnerabilities - December11 (Windows)
File : nvt/secpod_google_chrome_mult_vuln_dec11_win.nasl
2011-12-15 Name : Google Chrome Multiple Vulnerabilities - December11 (Linux)
File : nvt/secpod_google_chrome_mult_vuln_dec11_lin.nasl
0000-00-00 Name : FreeBSD Ports: chromium
File : nvt/freebsd_chromium1.nasl
0000-00-00 Name : FreeBSD Ports: chromium
File : nvt/freebsd_chromium0.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
78148 Google Chrome libxml2 parser.c xmlStringLenDecodeEntities() Function Remote O...

77707 Google Chrome libxml Out-of-bounds Read Remote DoS

Information Assurance Vulnerability Management (IAVM)

Date Description
2012-09-27 IAVM : 2012-A-0153 - Multiple Vulnerabilities in VMware ESX 4.0 and ESXi 4.0
Severity : Category I - VMSKEY : V0033884
2012-05-03 IAVM : 2012-A-0073 - Multiple Vulnerabilities in VMware ESXi 4.1 and ESX 4.1
Severity : Category I - VMSKEY : V0032171

Snort® IPS/IDS

Date Description
2015-03-10 libxml2 entity reference name heap buffer overflow attempt
RuleID : 33310 - Revision : 2 - Type : FILE-OTHER
2015-03-10 libxml2 entity reference name heap buffer overflow attempt
RuleID : 33309 - Revision : 2 - Type : FILE-OTHER

Nessus® Vulnerability Scanner

Date Description
2016-03-03 Name : The remote VMware ESX host is missing a security-related patch.
File : vmware_VMSA-2012-0008_remote.nasl - Type : ACT_GATHER_INFO
2016-02-29 Name : The remote VMware ESX / ESXi host is missing a security-related patch.
File : vmware_VMSA-2012-0012_remote.nasl - Type : ACT_GATHER_INFO
2015-05-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2013-1627-1.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_libxml2_20121120.nasl - Type : ACT_GATHER_INFO
2014-11-17 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0168.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2011-93.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_libxml2-120117.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_libxml2-120117.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-107.nasl - Type : ACT_GATHER_INFO
2013-11-13 Name : The remote VMware ESXi 5.0 host is affected by multiple security vulnerabilit...
File : vmware_esxi_5_0_build_764879_remote.nasl - Type : ACT_GATHER_INFO
2013-09-04 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2012-36.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2013-0217.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0018.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0017.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0016.nasl - Type : ACT_GATHER_INFO
2013-02-04 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20130131_mingw32_libxml2_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2013-02-01 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2013-0217.nasl - Type : ACT_GATHER_INFO
2013-02-01 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2013-0217.nasl - Type : ACT_GATHER_INFO
2013-01-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0104.nasl - Type : ACT_GATHER_INFO
2012-09-27 Name : The remote device is affected by multiple vulnerabilities.
File : appletv_5_1.nasl - Type : ACT_GATHER_INFO
2012-09-27 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13824.nasl - Type : ACT_GATHER_INFO
2012-09-27 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13820.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120111_libxml2_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120111_libxml2_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120111_libxml2_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2012-07-13 Name : The remote VMware ESXi host is missing a security-related patch.
File : vmware_VMSA-2012-0012.nasl - Type : ACT_GATHER_INFO
2012-05-10 Name : The remote host is missing a Mac OS X update that fixes multiple security vul...
File : macosx_SecUpd2012-002.nasl - Type : ACT_GATHER_INFO
2012-05-10 Name : The remote host is missing a Mac OS X update that fixes several security issues.
File : macosx_10_7_4.nasl - Type : ACT_GATHER_INFO
2012-04-28 Name : The remote VMware ESX host is missing one or more security-related patches.
File : vmware_VMSA-2012-0008.nasl - Type : ACT_GATHER_INFO
2012-03-01 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201202-09.nasl - Type : ACT_GATHER_INFO
2012-02-28 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_57f1a624619711e1b98cbcaec565249c.nasl - Type : ACT_GATHER_INFO
2012-01-27 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2394.nasl - Type : ACT_GATHER_INFO
2012-01-25 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libxml2-120116.nasl - Type : ACT_GATHER_INFO
2012-01-25 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_libxml2-7929.nasl - Type : ACT_GATHER_INFO
2012-01-20 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1334-1.nasl - Type : ACT_GATHER_INFO
2012-01-17 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0018.nasl - Type : ACT_GATHER_INFO
2012-01-17 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2012-005.nasl - Type : ACT_GATHER_INFO
2012-01-12 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0017.nasl - Type : ACT_GATHER_INFO
2012-01-12 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0016.nasl - Type : ACT_GATHER_INFO
2012-01-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0018.nasl - Type : ACT_GATHER_INFO
2012-01-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0017.nasl - Type : ACT_GATHER_INFO
2012-01-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0016.nasl - Type : ACT_GATHER_INFO
2012-01-10 Name : The remote host contains a web browser that is affected by multiple vulnerabi...
File : google_chrome_16_0_912_75.nasl - Type : ACT_GATHER_INFO
2012-01-09 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_1a1aef8e389411e18b5c00262d5ed8ee.nasl - Type : ACT_GATHER_INFO
2011-12-16 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-188.nasl - Type : ACT_GATHER_INFO
2011-12-14 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_68ac626625c311e1b63a00262d5ed8ee.nasl - Type : ACT_GATHER_INFO
2011-12-14 Name : The remote host contains a web browser that is affected by multiple vulnerabi...
File : google_chrome_16_0_912_63.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 11:55:30
  • Multiple Updates