6.8 - RHSA-2007:1052

Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.

Summary
Title	pcre security update

Informations
Name	RHSA-2007:1052	First vendor Publication	2007-11-09
Vendor	RedHat	Last vendor Modification	2007-11-09
Severity (Vendor)	Important	Revision	02

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:P/I:P/A:P)
Cvss Base Score	6.8	Attack Range	Network
Cvss Impact Score	6.4	Attack Complexity	Medium
Cvss Expoit Score	8.6	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated pcre packages that correct security issues are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

[Updated 15 November 2007] Further analysis of these flaws in PCRE has led to the single CVE identifier CVE-2006-7224 being split into three separate identifiers and a re-analysis of the risk of each of the flaws. We are therefore updating the text of this advisory to use the correct CVE names for the two flaws fixed by these erratum packages, and downgrading the security impact of this advisory from critical to important. No changes have been made to the packages themselves.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Problem description:

PCRE is a Perl-compatible regular expression library.

Flaws were found in the way PCRE handles certain malformed regular expressions. If an application linked against PCRE, such as Konqueror, parses a malicious regular expression, it may be possible to run arbitrary code as the user running the application. (CVE-2005-4872, CVE-2006-7227)

Users of PCRE are advised to upgrade to these updated packages, which contain a backported patch to correct these issues.

4. Solution:

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

5. Bug IDs fixed (http://bugzilla.redhat.com/):

383341 - CVE-2006-7227 pcre integer overflow 383361 - CVE-2005-4872 pcre incorrect memory requirement computation

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2007-1052.html

CWE : Common Weakness Enumeration

%	Id	Name
50 %	CWE-189	Numeric Errors (CWE/SANS Top 25)
50 %	CWE-119	Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10408

Oval ID:	oval:org.mitre.oval:def:10408
Title:	Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Description:	Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Family:	unix	Class:	vulnerability
Reference(s):	CVE-2006-7227	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:
OS Section: RHEL4, CentOS4, Oracle Linux 4 RHEL4, CentOS4 or Oracle Linux 4 The operating system installed on the system is Red Hat Enterprise Linux 4 AND CentOS Linux 4.x AND Oracle Linux 4.x AND Configuration section pcre-devel is earlier than 0:4.5-4.el4_5.4 AND pcre is earlier than 0:4.5-4.el4_5.4 OR OS Section: RHEL5, CentOS5, Oracle Linux 5 RHEL5, CentOS5 or Oracle Linux 5 The operating system installed on the system is Red Hat Enterprise Linux 5 AND CentOS Linux 5.x AND Oracle Linux 5.x AND Configuration section pcre-devel is earlier than 0:6.6-2.el5_1.1 AND pcre is earlier than 0:6.6-2.el5_1.1

Definition Id: oval:org.mitre.oval:def:11615

Oval ID:	oval:org.mitre.oval:def:11615
Title:	Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Description:	Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Family:	unix	Class:	vulnerability
Reference(s):	CVE-2005-4872	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:
OS Section: RHEL4, CentOS4, Oracle Linux 4 RHEL4, CentOS4 or Oracle Linux 4 The operating system installed on the system is Red Hat Enterprise Linux 4 AND CentOS Linux 4.x AND Oracle Linux 4.x AND Configuration section pcre-devel is earlier than 0:4.5-4.el4_5.4 AND pcre is earlier than 0:4.5-4.el4_5.4 OR OS Section: RHEL5, CentOS5, Oracle Linux 5 RHEL5, CentOS5 or Oracle Linux 5 The operating system installed on the system is Red Hat Enterprise Linux 5 AND CentOS Linux 5.x AND Oracle Linux 5.x AND Configuration section pcre-devel is earlier than 0:6.6-2.el5_1.1 AND pcre is earlier than 0:6.6-2.el5_1.1

Definition Id: oval:org.mitre.oval:def:21849

Oval ID:	oval:org.mitre.oval:def:21849
Title:	ELSA-2007:1052: pcre security update (Important)
Description:	Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent attackers to execute arbitrary code via a regular expression containing a large number of named subpatterns (name_count) or long subpattern names (max_name_size), which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
Family:	unix	Class:	patch
Reference(s):	ELSA-2007:1052-02 CVE-2005-4872 CVE-2006-7227	Version:	13
Platform(s):	Oracle Linux 5	Product(s):	pcre
Definition Synopsis:
Oracle Linux 5.x rpm test pcre-devel is earlier than 0:6.6-2.el5_1.1 AND pcre is earlier than 0:6.6-2.el5_1.1

CPE : Common Platform Enumeration

Type	Description	Count
Application	Pcre cpe:2.3:a:pcre:pcre:6.1:::::::* cpe:2.3:a:pcre:pcre:6.0:::::::* cpe:2.3:a:pcre:pcre:5.0:::::::* cpe:2.3:a:pcre:pcre::::::::	4

OpenVAS Exploits

Date	Description
2009-10-10	Name : SLES9: Security update for PHP4 File : nvt/sles9p5015662.nasl
2009-10-10	Name : SLES9: Security update for pcre File : nvt/sles9p5015818.nasl
2009-01-28	Name : SuSE Update for pcre SUSE-SA:2007:062 File : nvt/gb_suse_2007_062.nasl
2009-01-23	Name : SuSE Update for php4, php5 SUSE-SA:2008:004 File : nvt/gb_suse_2008_004.nasl
2008-09-24	Name : Gentoo Security Advisory GLSA 200711-30 (libpcre) File : nvt/glsa_200711_30.nasl
2008-09-24	Name : Gentoo Security Advisory GLSA 200801-02 (R) File : nvt/glsa_200801_02.nasl
2008-09-24	Name : Gentoo Security Advisory GLSA 200801-18 (kazehakase) File : nvt/glsa_200801_18.nasl
2008-09-24	Name : Gentoo Security Advisory GLSA 200801-19 (goffice) File : nvt/glsa_200801_19.nasl
2008-09-24	Name : Gentoo Security Advisory GLSA 200805-11 (chicken) File : nvt/glsa_200805_11.nasl
2008-05-12	Name : Debian Security Advisory DSA 1570-1 (kazehakase) File : nvt/deb_1570_1.nasl

Open Source Vulnerability Database (OSVDB)

Id	Description
40756	Perl-Compatible Regular Expression (PCRE) Regexp Subpattern Handling Overflow
40754	Perl-Compatible Regular Expression (PCRE) Crafted Regexp Parsing Overflow
40753	Perl-Compatible Regular Expression (PCRE) Named Capturing Subpatterns Countin...

Nessus® Vulnerability Scanner

Date	Description
2013-07-12	Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2007-1052.nasl - Type : ACT_GATHER_INFO
2012-08-01	Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20071109_pcre_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2009-09-24	Name : The remote SuSE 9 host is missing a security-related patch. File : suse9_12000.nasl - Type : ACT_GATHER_INFO
2009-09-24	Name : The remote SuSE 9 host is missing a security-related patch. File : suse9_12049.nasl - Type : ACT_GATHER_INFO
2009-04-23	Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2007-1052.nasl - Type : ACT_GATHER_INFO
2008-05-09	Name : The remote Debian host is missing a security-related update. File : debian_DSA-1570.nasl - Type : ACT_GATHER_INFO
2008-01-08	Name : The remote openSUSE host is missing a security update. File : suse_apache2-mod_php5-4810.nasl - Type : ACT_GATHER_INFO
2007-12-24	Name : The remote SuSE 10 host is missing a security-related patch. File : suse_apache2-mod_php5-4808.nasl - Type : ACT_GATHER_INFO
2007-12-13	Name : The remote SuSE 10 host is missing a security-related patch. File : suse_pcre-4689.nasl - Type : ACT_GATHER_INFO
2007-11-26	Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-200711-30.nasl - Type : ACT_GATHER_INFO
2007-11-20	Name : The remote openSUSE host is missing a security update. File : suse_pcre-4696.nasl - Type : ACT_GATHER_INFO
2007-11-12	Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2007-1052.nasl - Type : ACT_GATHER_INFO
2007-11-09	Name : The remote Mandrake Linux host is missing one or more security updates. File : mandrake_MDKSA-2007-212.nasl - Type : ACT_GATHER_INFO

Alert History

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Date	Informations
2014-02-17 11:51:13	Multiple Updates
2013-05-11 12:24:16	Multiple Updates

Global Informations

Type	Count
CWE ID(s)	2
Oval ID(s)	3
CPE ID(s)	4
osvdb(s)	3
Openvas Exploit(s)	10
Nessus® Exploit(s)	13

	Related
6.8	CVE-2006-7227
4.3	CVE-2005-4872
0	CVE-2006-7224
Info : listing not affected by your CVSS Env Score

Same Subject	Severity
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