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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0068
                       Moderate: php security update
                              19 January 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           php
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux WS/Desktop 5
                   Red Hat Enterprise Linux Server 5
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
                   Create Arbitrary Files          -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-4885 CVE-2011-4566 CVE-2011-2202
                   CVE-2011-1469 CVE-2011-1466 CVE-2011-1148
                   CVE-2011-0708  

Reference:         ASB-2011.0118
                   ASB-2011.0066

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2012-0033.html

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                   Red Hat Security Advisory

Synopsis:          Moderate: php security update
Advisory ID:       RHSA-2012:0033-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-0033.html
Issue date:        2012-01-18
CVE Names:         CVE-2011-0708 CVE-2011-1148 CVE-2011-1466 
                   CVE-2011-1469 CVE-2011-2202 CVE-2011-4566 
                   CVE-2011-4885 
=====================================================================

1. Summary:

Updated php packages that fix several security issues 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

3. Description:

PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Server.

It was found that the hashing routine used by PHP arrays was susceptible
to predictable hash collisions. If an HTTP POST request to a PHP
application contained many parameters whose names map to the same hash
value, a large amount of CPU time would be consumed. This flaw has been
mitigated by adding a new configuration directive, max_input_vars, that
limits the maximum number of parameters processed per request. By
default, max_input_vars is set to 1000. (CVE-2011-4885)

A use-after-free flaw was found in the PHP substr_replace() function. If a
PHP script used the same variable as multiple function arguments, a remote
attacker could possibly use this to crash the PHP interpreter or, possibly,
execute arbitrary code. (CVE-2011-1148)

An integer overflow flaw was found in the PHP exif extension. On 32-bit
systems, a specially-crafted image file could cause the PHP interpreter to
crash or disclose portions of its memory when a PHP script tries to extract
Exchangeable image file format (Exif) metadata from the image file.
(CVE-2011-4566)

An insufficient input validation flaw, leading to a buffer over-read, was
found in the PHP exif extension. A specially-crafted image file could cause
the PHP interpreter to crash when a PHP script tries to extract
Exchangeable image file format (Exif) metadata from the image file.
(CVE-2011-0708)

An integer overflow flaw was found in the PHP calendar extension. A remote
attacker able to make a PHP script call SdnToJulian() with a large value
could cause the PHP interpreter to crash. (CVE-2011-1466)

A bug in the PHP Streams component caused the PHP interpreter to crash if
an FTP wrapper connection was made through an HTTP proxy. A remote attacker
could possibly trigger this issue if a PHP script accepted an untrusted URL
to connect to. (CVE-2011-1469)

An off-by-one flaw was found in PHP. If an attacker uploaded a file with a
specially-crafted file name it could cause a PHP script to attempt to write
a file to the root (/) directory. By default, PHP runs as the "apache"
user, preventing it from writing to the root directory. (CVE-2011-2202)

Red Hat would like to thank oCERT for reporting CVE-2011-4885. oCERT
acknowledges Julian Wälde and Alexander Klink as the original reporters of
CVE-2011-4885.

All php users should upgrade to these updated packages, which contain
backported patches to resolve these issues. After installing the updated
packages, the httpd daemon 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 (http://bugzilla.redhat.com/):

680972 - CVE-2011-0708 php: buffer over-read in Exif extension
688958 - CVE-2011-1148 php: use-after-free vulnerability in substr_replace()
689386 - CVE-2011-1466 php: Crash by converting serial day numbers (SDN) into Julian calendar
690905 - CVE-2011-1469 php: DoS when using HTTP proxy with the FTP wrapper
713194 - CVE-2011-2202 php: file path injection vulnerability in RFC1867 file upload filename
750547 - CVE-2011-4885 php: hash table collisions CPU usage DoS (oCERT-2011-003)
758413 - CVE-2011-4566 php: integer overflow in exif_process_IFD_TAG() may lead to DoS or arbitrary memory disclosure

6. Package List:

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/php-5.1.6-27.el5_7.4.src.rpm

i386:
php-5.1.6-27.el5_7.4.i386.rpm
php-bcmath-5.1.6-27.el5_7.4.i386.rpm
php-cli-5.1.6-27.el5_7.4.i386.rpm
php-common-5.1.6-27.el5_7.4.i386.rpm
php-dba-5.1.6-27.el5_7.4.i386.rpm
php-debuginfo-5.1.6-27.el5_7.4.i386.rpm
php-devel-5.1.6-27.el5_7.4.i386.rpm
php-gd-5.1.6-27.el5_7.4.i386.rpm
php-imap-5.1.6-27.el5_7.4.i386.rpm
php-ldap-5.1.6-27.el5_7.4.i386.rpm
php-mbstring-5.1.6-27.el5_7.4.i386.rpm
php-mysql-5.1.6-27.el5_7.4.i386.rpm
php-ncurses-5.1.6-27.el5_7.4.i386.rpm
php-odbc-5.1.6-27.el5_7.4.i386.rpm
php-pdo-5.1.6-27.el5_7.4.i386.rpm
php-pgsql-5.1.6-27.el5_7.4.i386.rpm
php-snmp-5.1.6-27.el5_7.4.i386.rpm
php-soap-5.1.6-27.el5_7.4.i386.rpm
php-xml-5.1.6-27.el5_7.4.i386.rpm
php-xmlrpc-5.1.6-27.el5_7.4.i386.rpm

x86_64:
php-5.1.6-27.el5_7.4.x86_64.rpm
php-bcmath-5.1.6-27.el5_7.4.x86_64.rpm
php-cli-5.1.6-27.el5_7.4.x86_64.rpm
php-common-5.1.6-27.el5_7.4.x86_64.rpm
php-dba-5.1.6-27.el5_7.4.x86_64.rpm
php-debuginfo-5.1.6-27.el5_7.4.x86_64.rpm
php-devel-5.1.6-27.el5_7.4.x86_64.rpm
php-gd-5.1.6-27.el5_7.4.x86_64.rpm
php-imap-5.1.6-27.el5_7.4.x86_64.rpm
php-ldap-5.1.6-27.el5_7.4.x86_64.rpm
php-mbstring-5.1.6-27.el5_7.4.x86_64.rpm
php-mysql-5.1.6-27.el5_7.4.x86_64.rpm
php-ncurses-5.1.6-27.el5_7.4.x86_64.rpm
php-odbc-5.1.6-27.el5_7.4.x86_64.rpm
php-pdo-5.1.6-27.el5_7.4.x86_64.rpm
php-pgsql-5.1.6-27.el5_7.4.x86_64.rpm
php-snmp-5.1.6-27.el5_7.4.x86_64.rpm
php-soap-5.1.6-27.el5_7.4.x86_64.rpm
php-xml-5.1.6-27.el5_7.4.x86_64.rpm
php-xmlrpc-5.1.6-27.el5_7.4.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/php-5.1.6-27.el5_7.4.src.rpm

i386:
php-5.1.6-27.el5_7.4.i386.rpm
php-bcmath-5.1.6-27.el5_7.4.i386.rpm
php-cli-5.1.6-27.el5_7.4.i386.rpm
php-common-5.1.6-27.el5_7.4.i386.rpm
php-dba-5.1.6-27.el5_7.4.i386.rpm
php-debuginfo-5.1.6-27.el5_7.4.i386.rpm
php-devel-5.1.6-27.el5_7.4.i386.rpm
php-gd-5.1.6-27.el5_7.4.i386.rpm
php-imap-5.1.6-27.el5_7.4.i386.rpm
php-ldap-5.1.6-27.el5_7.4.i386.rpm
php-mbstring-5.1.6-27.el5_7.4.i386.rpm
php-mysql-5.1.6-27.el5_7.4.i386.rpm
php-ncurses-5.1.6-27.el5_7.4.i386.rpm
php-odbc-5.1.6-27.el5_7.4.i386.rpm
php-pdo-5.1.6-27.el5_7.4.i386.rpm
php-pgsql-5.1.6-27.el5_7.4.i386.rpm
php-snmp-5.1.6-27.el5_7.4.i386.rpm
php-soap-5.1.6-27.el5_7.4.i386.rpm
php-xml-5.1.6-27.el5_7.4.i386.rpm
php-xmlrpc-5.1.6-27.el5_7.4.i386.rpm

ia64:
php-5.1.6-27.el5_7.4.ia64.rpm
php-bcmath-5.1.6-27.el5_7.4.ia64.rpm
php-cli-5.1.6-27.el5_7.4.ia64.rpm
php-common-5.1.6-27.el5_7.4.ia64.rpm
php-dba-5.1.6-27.el5_7.4.ia64.rpm
php-debuginfo-5.1.6-27.el5_7.4.ia64.rpm
php-devel-5.1.6-27.el5_7.4.ia64.rpm
php-gd-5.1.6-27.el5_7.4.ia64.rpm
php-imap-5.1.6-27.el5_7.4.ia64.rpm
php-ldap-5.1.6-27.el5_7.4.ia64.rpm
php-mbstring-5.1.6-27.el5_7.4.ia64.rpm
php-mysql-5.1.6-27.el5_7.4.ia64.rpm
php-ncurses-5.1.6-27.el5_7.4.ia64.rpm
php-odbc-5.1.6-27.el5_7.4.ia64.rpm
php-pdo-5.1.6-27.el5_7.4.ia64.rpm
php-pgsql-5.1.6-27.el5_7.4.ia64.rpm
php-snmp-5.1.6-27.el5_7.4.ia64.rpm
php-soap-5.1.6-27.el5_7.4.ia64.rpm
php-xml-5.1.6-27.el5_7.4.ia64.rpm
php-xmlrpc-5.1.6-27.el5_7.4.ia64.rpm

ppc:
php-5.1.6-27.el5_7.4.ppc.rpm
php-bcmath-5.1.6-27.el5_7.4.ppc.rpm
php-cli-5.1.6-27.el5_7.4.ppc.rpm
php-common-5.1.6-27.el5_7.4.ppc.rpm
php-dba-5.1.6-27.el5_7.4.ppc.rpm
php-debuginfo-5.1.6-27.el5_7.4.ppc.rpm
php-devel-5.1.6-27.el5_7.4.ppc.rpm
php-gd-5.1.6-27.el5_7.4.ppc.rpm
php-imap-5.1.6-27.el5_7.4.ppc.rpm
php-ldap-5.1.6-27.el5_7.4.ppc.rpm
php-mbstring-5.1.6-27.el5_7.4.ppc.rpm
php-mysql-5.1.6-27.el5_7.4.ppc.rpm
php-ncurses-5.1.6-27.el5_7.4.ppc.rpm
php-odbc-5.1.6-27.el5_7.4.ppc.rpm
php-pdo-5.1.6-27.el5_7.4.ppc.rpm
php-pgsql-5.1.6-27.el5_7.4.ppc.rpm
php-snmp-5.1.6-27.el5_7.4.ppc.rpm
php-soap-5.1.6-27.el5_7.4.ppc.rpm
php-xml-5.1.6-27.el5_7.4.ppc.rpm
php-xmlrpc-5.1.6-27.el5_7.4.ppc.rpm

s390x:
php-5.1.6-27.el5_7.4.s390x.rpm
php-bcmath-5.1.6-27.el5_7.4.s390x.rpm
php-cli-5.1.6-27.el5_7.4.s390x.rpm
php-common-5.1.6-27.el5_7.4.s390x.rpm
php-dba-5.1.6-27.el5_7.4.s390x.rpm
php-debuginfo-5.1.6-27.el5_7.4.s390x.rpm
php-devel-5.1.6-27.el5_7.4.s390x.rpm
php-gd-5.1.6-27.el5_7.4.s390x.rpm
php-imap-5.1.6-27.el5_7.4.s390x.rpm
php-ldap-5.1.6-27.el5_7.4.s390x.rpm
php-mbstring-5.1.6-27.el5_7.4.s390x.rpm
php-mysql-5.1.6-27.el5_7.4.s390x.rpm
php-ncurses-5.1.6-27.el5_7.4.s390x.rpm
php-odbc-5.1.6-27.el5_7.4.s390x.rpm
php-pdo-5.1.6-27.el5_7.4.s390x.rpm
php-pgsql-5.1.6-27.el5_7.4.s390x.rpm
php-snmp-5.1.6-27.el5_7.4.s390x.rpm
php-soap-5.1.6-27.el5_7.4.s390x.rpm
php-xml-5.1.6-27.el5_7.4.s390x.rpm
php-xmlrpc-5.1.6-27.el5_7.4.s390x.rpm

x86_64:
php-5.1.6-27.el5_7.4.x86_64.rpm
php-bcmath-5.1.6-27.el5_7.4.x86_64.rpm
php-cli-5.1.6-27.el5_7.4.x86_64.rpm
php-common-5.1.6-27.el5_7.4.x86_64.rpm
php-dba-5.1.6-27.el5_7.4.x86_64.rpm
php-debuginfo-5.1.6-27.el5_7.4.x86_64.rpm
php-devel-5.1.6-27.el5_7.4.x86_64.rpm
php-gd-5.1.6-27.el5_7.4.x86_64.rpm
php-imap-5.1.6-27.el5_7.4.x86_64.rpm
php-ldap-5.1.6-27.el5_7.4.x86_64.rpm
php-mbstring-5.1.6-27.el5_7.4.x86_64.rpm
php-mysql-5.1.6-27.el5_7.4.x86_64.rpm
php-ncurses-5.1.6-27.el5_7.4.x86_64.rpm
php-odbc-5.1.6-27.el5_7.4.x86_64.rpm
php-pdo-5.1.6-27.el5_7.4.x86_64.rpm
php-pgsql-5.1.6-27.el5_7.4.x86_64.rpm
php-snmp-5.1.6-27.el5_7.4.x86_64.rpm
php-soap-5.1.6-27.el5_7.4.x86_64.rpm
php-xml-5.1.6-27.el5_7.4.x86_64.rpm
php-xmlrpc-5.1.6-27.el5_7.4.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-0708.html
https://www.redhat.com/security/data/cve/CVE-2011-1148.html
https://www.redhat.com/security/data/cve/CVE-2011-1466.html
https://www.redhat.com/security/data/cve/CVE-2011-1469.html
https://www.redhat.com/security/data/cve/CVE-2011-2202.html
https://www.redhat.com/security/data/cve/CVE-2011-4566.html
https://www.redhat.com/security/data/cve/CVE-2011-4885.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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