Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title tcl security and bug fix update
Informations
Name RHSA-2013:0122 First vendor Publication 2013-01-08
Vendor RedHat Last vendor Modification 2013-01-08
Severity (Vendor) Moderate 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:S/C:N/I:N/A:C)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated tcl packages that fix two security issues and one bug are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate 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:

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

3. Description:

Tcl (Tool Command Language) provides a powerful platform for creating integration applications that tie together diverse applications, protocols, devices, and frameworks. When paired with the Tk toolkit, Tcl provides a fast and powerful way to create cross-platform GUI applications.

Two denial of service flaws were found in the Tcl regular expression handling engine. If Tcl or an application using Tcl processed a specially-crafted regular expression, it would lead to excessive CPU and memory consumption. (CVE-2007-4772, CVE-2007-6067)

This update also fixes the following bug:

* Due to a suboptimal implementation of threading in the current version of the Tcl language interpreter, an attempt to use threads in combination with fork in a Tcl script could cause the script to stop responding. At the moment, it is not possible to rewrite the source code or drop support for threading entirely. Consequent to this, this update provides a version of Tcl without threading support in addition to the standard version with this support. Users who need to use fork in their Tcl scripts and do not require threading can now switch to the version without threading support by using the alternatives command. (BZ#478961)

All users of Tcl are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

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/knowledge/articles/11258

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

316511 - CVE-2007-4772 postgresql DoS via infinite loop in regex NFA optimization code 400931 - CVE-2007-6067 postgresql: tempory DoS caused by slow regex NFA cleanup 478961 - [RHEL5] tcl threads support implementation can cause scripts to hang

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2013-0122.html

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-399 Resource Management Errors
50 % CWE-189 Numeric Errors (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10235
 
Oval ID: oval:org.mitre.oval:def:10235
Title: Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.
Description: Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.
Family: unix Class: vulnerability
Reference(s): CVE-2007-6067
Version: 5
Platform(s): Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:11569
 
Oval ID: oval:org.mitre.oval:def:11569
Title: The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted regular expression.
Description: The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted regular expression.
Family: unix Class: vulnerability
Reference(s): CVE-2007-4772
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20998
 
Oval ID: oval:org.mitre.oval:def:20998
Title: RHSA-2013:0122: tcl security and bug fix update (Moderate)
Description: Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.
Family: unix Class: patch
Reference(s): RHSA-2013:0122-00
CESA-2013:0122
CVE-2007-4772
CVE-2007-6067
Version: 31
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): tcl
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23371
 
Oval ID: oval:org.mitre.oval:def:23371
Title: ELSA-2013:0122: tcl security and bug fix update (Moderate)
Description: Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.
Family: unix Class: patch
Reference(s): ELSA-2013:0122-00
CVE-2007-4772
CVE-2007-6067
Version: 13
Platform(s): Oracle Linux 5
Product(s): tcl
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27239
 
Oval ID: oval:org.mitre.oval:def:27239
Title: DEPRECATED: ELSA-2013-0122 -- tcl security and bug fix update (moderate)
Description: [8.4.13-6] - Fixed infinite loop in regex NFA optimization code Resolves: CVE-2007-4772 - Fixed O(N^2) compile time (and huge memory requirements) for some regexps Resolves: CVE-2007-6067 [8.4.13-5] - Threaded / nonthreaded versions of tcl are now switchable through alternatives Resolves: rhbz#478961
Family: unix Class: patch
Reference(s): ELSA-2013-0122
CVE-2007-4772
CVE-2007-6067
Version: 4
Platform(s): Oracle Linux 5
Product(s): tcl
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 158
Application 1
Application 57
Os 4
Os 1

OpenVAS Exploits

Date Description
2009-10-13 Name : SLES10: Security update for PostgreSQL
File : nvt/sles10_postgresql1.nasl
2009-10-10 Name : SLES9: Security update for postgresql
File : nvt/sles9p5021809.nasl
2009-04-09 Name : Mandriva Update for tcl MDVSA-2008:059 (tcl)
File : nvt/gb_mandriva_MDVSA_2008_059.nasl
2009-04-09 Name : Mandriva Update for postgresql MDVSA-2008:004 (postgresql)
File : nvt/gb_mandriva_MDVSA_2008_004.nasl
2009-03-23 Name : Ubuntu Update for postgresql vulnerabilities USN-568-1
File : nvt/gb_ubuntu_USN_568_1.nasl
2009-03-06 Name : RedHat Update for tcltk RHSA-2008:0134-01
File : nvt/gb_RHSA-2008_0134-01_tcltk.nasl
2009-03-06 Name : RedHat Update for postgresql RHSA-2008:0038-01
File : nvt/gb_RHSA-2008_0038-01_postgresql.nasl
2009-02-27 Name : CentOS Update for expect CESA-2008:0134 centos3 x86_64
File : nvt/gb_CESA-2008_0134_expect_centos3_x86_64.nasl
2009-02-27 Name : CentOS Update for expect CESA-2008:0134 centos3 i386
File : nvt/gb_CESA-2008_0134_expect_centos3_i386.nasl
2009-02-27 Name : CentOS Update for tcltk CESA-2008:0134-01 centos2 i386
File : nvt/gb_CESA-2008_0134-01_tcltk_centos2_i386.nasl
2009-02-27 Name : CentOS Update for postgresql CESA-2008:0038 centos4 x86_64
File : nvt/gb_CESA-2008_0038_postgresql_centos4_x86_64.nasl
2009-02-27 Name : CentOS Update for postgresql CESA-2008:0038 centos4 i386
File : nvt/gb_CESA-2008_0038_postgresql_centos4_i386.nasl
2009-02-17 Name : Fedora Update for postgresql FEDORA-2008-0478
File : nvt/gb_fedora_2008_0478_postgresql_fc8.nasl
2009-02-17 Name : Fedora Update for postgresql FEDORA-2008-0552
File : nvt/gb_fedora_2008_0552_postgresql_fc7.nasl
2009-01-23 Name : SuSE Update for postgresql SUSE-SA:2008:005
File : nvt/gb_suse_2008_005.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200801-15 (postgresql)
File : nvt/glsa_200801_15.nasl
2008-09-04 Name : FreeBSD Ports: postgresql, postgresql-server
File : nvt/freebsd_postgresql4.nasl
2008-01-31 Name : Debian Security Advisory DSA 1460-1 (postgresql-8.1)
File : nvt/deb_1460_1.nasl
2008-01-31 Name : Debian Security Advisory DSA 1463-1 (postgresql-7.4)
File : nvt/deb_1463_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
40905 TCL in PostgreSQL Crafted Regexp Infinite Loop Remote DoS

40902 TCL in PostgreSQL Regular Expression Parser Crafted Doubly-nested State Regex...

Nessus® Vulnerability Scanner

Date Description
2016-03-08 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0677-1.nasl - Type : ACT_GATHER_INFO
2016-02-26 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-271.nasl - Type : ACT_GATHER_INFO
2016-02-25 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0555-1.nasl - Type : ACT_GATHER_INFO
2016-02-24 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-253.nasl - Type : ACT_GATHER_INFO
2016-02-23 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-0539-1.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2013-0122.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0038.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2008-0134.nasl - Type : ACT_GATHER_INFO
2013-01-17 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2013-0122.nasl - Type : ACT_GATHER_INFO
2013-01-17 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20130108_tcl_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2013-01-08 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2013-0122.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20080221_tcltk_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20080111_postgresql_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12065.nasl - Type : ACT_GATHER_INFO
2009-07-27 Name : The remote VMware ESXi / ESX host is missing one or more security-related pat...
File : vmware_VMSA-2008-0009.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-059.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2008-004.nasl - Type : ACT_GATHER_INFO
2008-04-28 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_51436b4c125011ddbab70016179b2dd5.nasl - Type : ACT_GATHER_INFO
2008-02-25 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0134.nasl - Type : ACT_GATHER_INFO
2008-02-25 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0134.nasl - Type : ACT_GATHER_INFO
2008-02-11 Name : The remote openSUSE host is missing a security update.
File : suse_postgresql-4955.nasl - Type : ACT_GATHER_INFO
2008-02-06 Name : The remote openSUSE host is missing a security update.
File : suse_postgresql-4958.nasl - Type : ACT_GATHER_INFO
2008-02-06 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_postgresql-4962.nasl - Type : ACT_GATHER_INFO
2008-01-29 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200801-15.nasl - Type : ACT_GATHER_INFO
2008-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-568-1.nasl - Type : ACT_GATHER_INFO
2008-01-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1463.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2008-0038.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2008-0038.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote Fedora host is missing a security update.
File : fedora_2008-0552.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote Fedora host is missing a security update.
File : fedora_2008-0478.nasl - Type : ACT_GATHER_INFO
2008-01-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1460.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-02-17 11:56:36
  • Multiple Updates
2013-01-08 09:18:05
  • First insertion