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Category:   Application (Generic)  >   PHP Vendors:   PHP Group
(Red Hat Issues Fix for Red Hat Application Stack) PHP Buffer Overflows, Filtering Bypass, and Configuration Bypass Bugs May Let Users Gain Elevated Privileges
SecurityTracker Alert ID:  1020424
SecurityTracker URL:  http://securitytracker.com/id/1020424
CVE Reference:   CVE-2007-5898, CVE-2007-5900   (Links to External Site)
Date:  Jul 2 2008
Impact:   Execution of arbitrary code via local system, Modification of user information, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 5.2.5
Description:   A vulnerability was reported in PHP. A user may be able to obtain elevated privileges on the target system.

A user may be able to trigger a buffer overflow in the fnmatch(), setlocale() and glob() functions. Laurent Gaffie reported this vulnerability.

A user can supply partial multibyte sequences to the htmlentities() and htmlspecialchars() functions to potentially bypass the filtering functions. Rasmus Lerdorf reported this vulnerability.

A user can invoke the ini_set() function to overwrite values set with php_admin_* in the 'httpd.conf' file. samy-delux at gmx dot de reported this vulnerability.

Impact:   A user may be able to obtain elevated privileges on the target system.
Solution:   Red Hat has released a fix for Red Hat Application Stack.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0505.html

Vendor URL:  www.php.net/releases/5_2_5.php (Links to External Site)
Cause:   Access control error, Boundary error, State error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Nov 12 2007 PHP Buffer Overflows, Filtering Bypass, and Configuration Bypass Bugs May Let Users Gain Elevated Privileges



 Source Message Contents

Date:  Wed, 2 Jul 2008 09:17:19 -0400
Subject:  [RHSA-2008:0505-01] Moderate: Red Hat Application Stack v2.1


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Moderate: Red Hat Application Stack v2.1 security and enhancement update
Advisory ID:       RHSA-2008:0505-01
Product:           Red Hat Application Stack
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0505.html
Issue date:        2008-07-02
CVE Names:         CVE-2008-2079 CVE-2008-2051 CVE-2007-5898 
                   CVE-2007-5899 CVE-2007-4782 CVE-2008-2107 
                   CVE-2008-2108 CVE-2008-0599 
=====================================================================

1. Summary:

Red Hat Application Stack v2.1 is now available. This update fixes various
security issues and adds several enhancements.

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

2. Relevant releases/architectures:

Red Hat Application Stack v2 for Enterprise Linux (v.5) - i386, noarch, x86_64

3. Description:

The Red Hat Application Stack is an integrated open source application
stack, and includes JBoss Enterprise Application Platform (EAP).

Starting with this update, JBoss EAP is no longer provided via the
Application Stack channels. Instead, all Application Stack customers are
automatically entitled to the JBoss EAP channels. This ensures all users
have immediate access to JBoss EAP packages when they are released,
ensuring lesser wait for security and critical patches.

As a result, you must MANUALLY subscribe to the appropriate JBoss EAP
channel, as all further JBoss EAP updates will only go to that channel.

This update also entitles all customers to the JBoss EAP 4.3.0 channels.
Users receive support for JBoss EAP 4.3.0 if they choose to install it.
Important: downgrading from JBoss EAP 4.3.0 to 4.2.0 is unsupported.

PHP was updated to version 5.2.6, fixing the following security issues:

It was discovered that the PHP escapeshellcmd() function did not properly
escape multi-byte characters which are not valid in the locale used by the
script. This could allow an attacker to bypass quoting restrictions imposed
by escapeshellcmd() and execute arbitrary commands if the PHP script was
using certain locales. Scripts using the default UTF-8 locale are not
affected by this issue. (CVE-2008-2051)

The PHP functions htmlentities() and htmlspecialchars() did not properly
recognize partial multi-byte sequences. Certain sequences of bytes could be
passed through these functions without being correctly HTML-escaped.
Depending on the browser being used, an attacker could use this flaw to
conduct cross-site scripting attacks. (CVE-2007-5898)

A PHP script which used the transparent session ID configuration option, or
which used the output_add_rewrite_var() function, could leak session
identifiers to external web sites. If a page included an HTML form with an
ACTION attribute referencing a non-local URL, the user's session ID would
be included in the form data passed to that URL. (CVE-2007-5899)

It was discovered that the PHP fnmatch() function did not restrict the
length of the string argument. An attacker could use this flaw to crash the
PHP interpreter where a script used fnmatch() on untrusted input data.
(CVE-2007-4782)

It was discovered that PHP did not properly seed its pseudo-random number
generator used by functions such as rand() and mt_rand(), possibly allowing
an attacker to easily predict the generated pseudo-random values.
(CVE-2008-2107, CVE-2008-2108)

A flaw was found in PHP's CGI server API. If the web server did not set
DOCUMENT_ROOT environment variable for PHP (e.g. when running PHP in the
FastCGI server mode), an attacker could cause a crash of the PHP child
process, causing a temporary denial of service. (CVE-2008-0599)

MySQL was updated to version 5.0.50sp1a, fixing the following security
issue:

MySQL did not correctly check directories used as arguments for the DATA
DIRECTORY and INDEX DIRECTORY directives. Using this flaw, an authenticated
attacker could elevate their access privileges to tables created by other
database users. Note: this attack does not work on existing tables. An
attacker can only elevate their access to another user's tables as the
tables are created. As well, the names of these created tables need to be
predicted correctly for this attack to succeed. (CVE-2008-2079)

The following packages are updated:

* httpd to 2.2.8
* mod_jk to 1.2.26
* mod_perl to 2.0.4
* the MySQL Connector/ODBC to 3.51.24r1071
* the MySQL Connector/J (JDBC driver) to 5.0.8
* perl-DBD-MySQL to 4.006
* perl-DBI to 1.604
* postgresql to 8.2.7
* postgresql-jdbc to 8.2.508
* postgresqlclient81 to 8.1.11
* postgresql-odbc to 8.02.0500

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

285881 - CVE-2007-4782 php crash in glob() and fnmatch() functions
382411 - CVE-2007-5898 php htmlentities/htmlspecialchars multibyte sequences
382431 - CVE-2007-5899 php session ID leakage
445003 - CVE-2008-0599 php: buffer overflow in a CGI path translation
445006 - CVE-2008-2051 PHP multibyte shell escape flaw
445222 - CVE-2008-2079 mysql: privilege escalation via DATA/INDEX DIRECTORY directives
445684 - CVE-2008-2107 PHP 32 bit weak random seed
445685 - CVE-2008-2108 PHP weak 64 bit random seed

6. Package List:

Red Hat Application Stack v2 for Enterprise Linux (v.5):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/httpd-2.2.8-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/mod_jk-1.2.26-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/mod_perl-2.0.4-3.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/mysql-5.0.50sp1a-2.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/mysql-connector-odbc-3.51.24r1071-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/mysql-jdbc-5.0.8-1jpp.1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/perl-DBD-MySQL-4.006-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/perl-DBI-1.604-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/php-5.2.6-2.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/postgresql-8.2.9-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/postgresql-jdbc-8.2.508-1jpp.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/postgresql-odbc-08.02.0500-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/postgresqlclient81-8.1.11-1.el5s2.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/unixODBC-2.2.12-8.el5s2.src.rpm

i386:
httpd-2.2.8-1.el5s2.i386.rpm
httpd-debuginfo-2.2.8-1.el5s2.i386.rpm
httpd-devel-2.2.8-1.el5s2.i386.rpm
httpd-manual-2.2.8-1.el5s2.i386.rpm
mod_jk-ap20-1.2.26-1.el5s2.i386.rpm
mod_jk-debuginfo-1.2.26-1.el5s2.i386.rpm
mod_perl-2.0.4-3.el5s2.i386.rpm
mod_perl-debuginfo-2.0.4-3.el5s2.i386.rpm
mod_perl-devel-2.0.4-3.el5s2.i386.rpm
mod_ssl-2.2.8-1.el5s2.i386.rpm
mysql-5.0.50sp1a-2.el5s2.i386.rpm
mysql-bench-5.0.50sp1a-2.el5s2.i386.rpm
mysql-cluster-5.0.50sp1a-2.el5s2.i386.rpm
mysql-connector-odbc-3.51.24r1071-1.el5s2.i386.rpm
mysql-connector-odbc-debuginfo-3.51.24r1071-1.el5s2.i386.rpm
mysql-debuginfo-5.0.50sp1a-2.el5s2.i386.rpm
mysql-devel-5.0.50sp1a-2.el5s2.i386.rpm
mysql-libs-5.0.50sp1a-2.el5s2.i386.rpm
mysql-server-5.0.50sp1a-2.el5s2.i386.rpm
mysql-test-5.0.50sp1a-2.el5s2.i386.rpm
perl-DBD-MySQL-4.006-1.el5s2.i386.rpm
perl-DBD-MySQL-debuginfo-4.006-1.el5s2.i386.rpm
perl-DBI-1.604-1.el5s2.i386.rpm
perl-DBI-debuginfo-1.604-1.el5s2.i386.rpm
php-5.2.6-2.el5s2.i386.rpm
php-bcmath-5.2.6-2.el5s2.i386.rpm
php-cli-5.2.6-2.el5s2.i386.rpm
php-common-5.2.6-2.el5s2.i386.rpm
php-dba-5.2.6-2.el5s2.i386.rpm
php-debuginfo-5.2.6-2.el5s2.i386.rpm
php-devel-5.2.6-2.el5s2.i386.rpm
php-gd-5.2.6-2.el5s2.i386.rpm
php-imap-5.2.6-2.el5s2.i386.rpm
php-ldap-5.2.6-2.el5s2.i386.rpm
php-mbstring-5.2.6-2.el5s2.i386.rpm
php-mysql-5.2.6-2.el5s2.i386.rpm
php-ncurses-5.2.6-2.el5s2.i386.rpm
php-odbc-5.2.6-2.el5s2.i386.rpm
php-pdo-5.2.6-2.el5s2.i386.rpm
php-pgsql-5.2.6-2.el5s2.i386.rpm
php-snmp-5.2.6-2.el5s2.i386.rpm
php-soap-5.2.6-2.el5s2.i386.rpm
php-xml-5.2.6-2.el5s2.i386.rpm
php-xmlrpc-5.2.6-2.el5s2.i386.rpm
postgresql-8.2.9-1.el5s2.i386.rpm
postgresql-contrib-8.2.9-1.el5s2.i386.rpm
postgresql-debuginfo-8.2.9-1.el5s2.i386.rpm
postgresql-devel-8.2.9-1.el5s2.i386.rpm
postgresql-docs-8.2.9-1.el5s2.i386.rpm
postgresql-jdbc-8.2.508-1jpp.el5s2.i386.rpm
postgresql-jdbc-debuginfo-8.2.508-1jpp.el5s2.i386.rpm
postgresql-libs-8.2.9-1.el5s2.i386.rpm
postgresql-odbc-08.02.0500-1.el5s2.i386.rpm
postgresql-odbc-debuginfo-08.02.0500-1.el5s2.i386.rpm
postgresql-plperl-8.2.9-1.el5s2.i386.rpm
postgresql-plpython-8.2.9-1.el5s2.i386.rpm
postgresql-pltcl-8.2.9-1.el5s2.i386.rpm
postgresql-python-8.2.9-1.el5s2.i386.rpm
postgresql-server-8.2.9-1.el5s2.i386.rpm
postgresql-tcl-8.2.9-1.el5s2.i386.rpm
postgresql-test-8.2.9-1.el5s2.i386.rpm
postgresqlclient81-8.1.11-1.el5s2.i386.rpm
postgresqlclient81-debuginfo-8.1.11-1.el5s2.i386.rpm
unixODBC-2.2.12-8.el5s2.i386.rpm
unixODBC-debuginfo-2.2.12-8.el5s2.i386.rpm
unixODBC-devel-2.2.12-8.el5s2.i386.rpm
unixODBC-kde-2.2.12-8.el5s2.i386.rpm

noarch:
mysql-jdbc-5.0.8-1jpp.1.el5s2.noarch.rpm

x86_64:
httpd-2.2.8-1.el5s2.x86_64.rpm
httpd-debuginfo-2.2.8-1.el5s2.x86_64.rpm
httpd-devel-2.2.8-1.el5s2.x86_64.rpm
httpd-manual-2.2.8-1.el5s2.x86_64.rpm
mod_jk-ap20-1.2.26-1.el5s2.x86_64.rpm
mod_jk-debuginfo-1.2.26-1.el5s2.x86_64.rpm
mod_perl-2.0.4-3.el5s2.x86_64.rpm
mod_perl-debuginfo-2.0.4-3.el5s2.x86_64.rpm
mod_perl-devel-2.0.4-3.el5s2.x86_64.rpm
mod_ssl-2.2.8-1.el5s2.x86_64.rpm
mysql-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-bench-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-cluster-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-connector-odbc-3.51.24r1071-1.el5s2.x86_64.rpm
mysql-connector-odbc-debuginfo-3.51.24r1071-1.el5s2.x86_64.rpm
mysql-debuginfo-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-devel-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-libs-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-server-5.0.50sp1a-2.el5s2.x86_64.rpm
mysql-test-5.0.50sp1a-2.el5s2.x86_64.rpm
perl-DBD-MySQL-4.006-1.el5s2.x86_64.rpm
perl-DBD-MySQL-debuginfo-4.006-1.el5s2.x86_64.rpm
perl-DBI-1.604-1.el5s2.x86_64.rpm
perl-DBI-debuginfo-1.604-1.el5s2.x86_64.rpm
php-5.2.6-2.el5s2.x86_64.rpm
php-bcmath-5.2.6-2.el5s2.x86_64.rpm
php-cli-5.2.6-2.el5s2.x86_64.rpm
php-common-5.2.6-2.el5s2.x86_64.rpm
php-dba-5.2.6-2.el5s2.x86_64.rpm
php-debuginfo-5.2.6-2.el5s2.x86_64.rpm
php-devel-5.2.6-2.el5s2.x86_64.rpm
php-gd-5.2.6-2.el5s2.x86_64.rpm
php-imap-5.2.6-2.el5s2.x86_64.rpm
php-ldap-5.2.6-2.el5s2.x86_64.rpm
php-mbstring-5.2.6-2.el5s2.x86_64.rpm
php-mysql-5.2.6-2.el5s2.x86_64.rpm
php-ncurses-5.2.6-2.el5s2.x86_64.rpm
php-odbc-5.2.6-2.el5s2.x86_64.rpm
php-pdo-5.2.6-2.el5s2.x86_64.rpm
php-pgsql-5.2.6-2.el5s2.x86_64.rpm
php-snmp-5.2.6-2.el5s2.x86_64.rpm
php-soap-5.2.6-2.el5s2.x86_64.rpm
php-xml-5.2.6-2.el5s2.x86_64.rpm
php-xmlrpc-5.2.6-2.el5s2.x86_64.rpm
postgresql-8.2.9-1.el5s2.x86_64.rpm
postgresql-contrib-8.2.9-1.el5s2.x86_64.rpm
postgresql-debuginfo-8.2.9-1.el5s2.x86_64.rpm
postgresql-devel-8.2.9-1.el5s2.x86_64.rpm
postgresql-docs-8.2.9-1.el5s2.x86_64.rpm
postgresql-jdbc-8.2.508-1jpp.el5s2.x86_64.rpm
postgresql-jdbc-debuginfo-8.2.508-1jpp.el5s2.x86_64.rpm
postgresql-libs-8.2.9-1.el5s2.x86_64.rpm
postgresql-odbc-08.02.0500-1.el5s2.x86_64.rpm
postgresql-odbc-debuginfo-08.02.0500-1.el5s2.x86_64.rpm
postgresql-plperl-8.2.9-1.el5s2.x86_64.rpm
postgresql-plpython-8.2.9-1.el5s2.x86_64.rpm
postgresql-pltcl-8.2.9-1.el5s2.x86_64.rpm
postgresql-python-8.2.9-1.el5s2.x86_64.rpm
postgresql-server-8.2.9-1.el5s2.x86_64.rpm
postgresql-tcl-8.2.9-1.el5s2.x86_64.rpm
postgresql-test-8.2.9-1.el5s2.x86_64.rpm
postgresqlclient81-8.1.11-1.el5s2.x86_64.rpm
postgresqlclient81-debuginfo-8.1.11-1.el5s2.x86_64.rpm
unixODBC-2.2.12-8.el5s2.x86_64.rpm
unixODBC-debuginfo-2.2.12-8.el5s2.x86_64.rpm
unixODBC-devel-2.2.12-8.el5s2.x86_64.rpm
unixODBC-kde-2.2.12-8.el5s2.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2079
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2051
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5898
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5899
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4782
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2107
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2108
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0599
http://www.redhat.com/docs/en-US/Red_Hat_Application_Stack/2.1/html-single/Release_Notes/
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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