Synopsis

Moderate: php security update

Type/Severity

Security Advisory: Moderate

Topic

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.

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 Walde 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.

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

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

CVEs

• CVE-2011-1148
• CVE-2011-0708
• CVE-2011-1469
• CVE-2011-2202
• CVE-2011-1466
• CVE-2011-4885
• CVE-2011-4566

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux Server 5

SRPM
x86_64
php-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b304570f4165f964ee0e0af3230fadc2bb99b07b56e36f122b982fc55d9d74dc
php-bcmath-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 422d44f02575664bc66c573e4a4c553a75355a5fe9188b4015a9152d2b82d193
php-cli-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 730a6ae36b01a7db0834039cc38cf3c2747f520dcff1e822f7f9d8621bed89f6
php-common-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 4f34567c6798422729fd3b6f3cfade8c784d6b06ef178feb29137afc5adc2d30
php-dba-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 219007379914b51ce6c51ecd02a4f18272e336b53d0cfd8e0ac33d048676cc5c
php-devel-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 8468df395050280fdecb7756008ccad8941a14a3f9e803085798a09449cde562
php-gd-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: ffa5cf6cbfaf799e330de8daa7eccc3c755aa9ef18d123b08031cf5ae0584a48
php-imap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b13296989cb48cdcc94d902a1f6e9859bcac27d30c4fa2d08844ec3733983bc6
php-ldap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: d168fd78788efcf4a0297e634c0aa50f5dc8ce44e51b68cbcfac82699470eced
php-mbstring-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67d9ca02ac1914fb52beefc9198e6342af9328dd4a387c181582b9f09b493ac7
php-mysql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7788b5c7480a9f273be24f41194b30168b17b99da9b1376189ebd008f1973202
php-ncurses-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67eeaf0d037fbc0afaaa8f70fd9d42846d587cda3cb2691926d112bbf270cb02
php-odbc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 61a90bb2d64b4a2971501a4e48123dd363dff814348f71b108a1e3b5f1484e2e
php-pdo-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 96b6071fac3c7c0fa1dd9b0993bb3731b7da8ee997b3c1b92000f780e4bfa870
php-pgsql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: f7966761c3e0e97719c80b43a6fecc4d0c3acf6e52fc5a813061825c1e5e09f8
php-snmp-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: a39b0afcd6807c908979f4437c70effbfe96655f7f1e7df8e45cb3abf438a69e
php-soap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 08b3c54dc8938bd0f3f3220a981e96c14c44d9397c2ff3e8c564a89901f53142
php-xml-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 2c24c64f2f7138454dbeabacb22f5213fb3589dedb60c70a6da317c350715185
php-xmlrpc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7f6695b0bacd4575db29fd73c0578a7bdecd87db610e63ccfcaa6bb6984dfd22

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
php-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b304570f4165f964ee0e0af3230fadc2bb99b07b56e36f122b982fc55d9d74dc
php-bcmath-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 422d44f02575664bc66c573e4a4c553a75355a5fe9188b4015a9152d2b82d193
php-cli-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 730a6ae36b01a7db0834039cc38cf3c2747f520dcff1e822f7f9d8621bed89f6
php-common-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 4f34567c6798422729fd3b6f3cfade8c784d6b06ef178feb29137afc5adc2d30
php-dba-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 219007379914b51ce6c51ecd02a4f18272e336b53d0cfd8e0ac33d048676cc5c
php-devel-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 8468df395050280fdecb7756008ccad8941a14a3f9e803085798a09449cde562
php-gd-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: ffa5cf6cbfaf799e330de8daa7eccc3c755aa9ef18d123b08031cf5ae0584a48
php-imap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b13296989cb48cdcc94d902a1f6e9859bcac27d30c4fa2d08844ec3733983bc6
php-ldap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: d168fd78788efcf4a0297e634c0aa50f5dc8ce44e51b68cbcfac82699470eced
php-mbstring-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67d9ca02ac1914fb52beefc9198e6342af9328dd4a387c181582b9f09b493ac7
php-mysql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7788b5c7480a9f273be24f41194b30168b17b99da9b1376189ebd008f1973202
php-ncurses-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67eeaf0d037fbc0afaaa8f70fd9d42846d587cda3cb2691926d112bbf270cb02
php-odbc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 61a90bb2d64b4a2971501a4e48123dd363dff814348f71b108a1e3b5f1484e2e
php-pdo-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 96b6071fac3c7c0fa1dd9b0993bb3731b7da8ee997b3c1b92000f780e4bfa870
php-pgsql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: f7966761c3e0e97719c80b43a6fecc4d0c3acf6e52fc5a813061825c1e5e09f8
php-snmp-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: a39b0afcd6807c908979f4437c70effbfe96655f7f1e7df8e45cb3abf438a69e
php-soap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 08b3c54dc8938bd0f3f3220a981e96c14c44d9397c2ff3e8c564a89901f53142
php-xml-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 2c24c64f2f7138454dbeabacb22f5213fb3589dedb60c70a6da317c350715185
php-xmlrpc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7f6695b0bacd4575db29fd73c0578a7bdecd87db610e63ccfcaa6bb6984dfd22

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
php-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b304570f4165f964ee0e0af3230fadc2bb99b07b56e36f122b982fc55d9d74dc
php-bcmath-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 422d44f02575664bc66c573e4a4c553a75355a5fe9188b4015a9152d2b82d193
php-cli-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 730a6ae36b01a7db0834039cc38cf3c2747f520dcff1e822f7f9d8621bed89f6
php-common-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 4f34567c6798422729fd3b6f3cfade8c784d6b06ef178feb29137afc5adc2d30
php-dba-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 219007379914b51ce6c51ecd02a4f18272e336b53d0cfd8e0ac33d048676cc5c
php-devel-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 8468df395050280fdecb7756008ccad8941a14a3f9e803085798a09449cde562
php-gd-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: ffa5cf6cbfaf799e330de8daa7eccc3c755aa9ef18d123b08031cf5ae0584a48
php-imap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: b13296989cb48cdcc94d902a1f6e9859bcac27d30c4fa2d08844ec3733983bc6
php-ldap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: d168fd78788efcf4a0297e634c0aa50f5dc8ce44e51b68cbcfac82699470eced
php-mbstring-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67d9ca02ac1914fb52beefc9198e6342af9328dd4a387c181582b9f09b493ac7
php-mysql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7788b5c7480a9f273be24f41194b30168b17b99da9b1376189ebd008f1973202
php-ncurses-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 67eeaf0d037fbc0afaaa8f70fd9d42846d587cda3cb2691926d112bbf270cb02
php-odbc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 61a90bb2d64b4a2971501a4e48123dd363dff814348f71b108a1e3b5f1484e2e
php-pdo-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 96b6071fac3c7c0fa1dd9b0993bb3731b7da8ee997b3c1b92000f780e4bfa870
php-pgsql-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: f7966761c3e0e97719c80b43a6fecc4d0c3acf6e52fc5a813061825c1e5e09f8
php-snmp-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: a39b0afcd6807c908979f4437c70effbfe96655f7f1e7df8e45cb3abf438a69e
php-soap-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 08b3c54dc8938bd0f3f3220a981e96c14c44d9397c2ff3e8c564a89901f53142
php-xml-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 2c24c64f2f7138454dbeabacb22f5213fb3589dedb60c70a6da317c350715185
php-xmlrpc-5.1.6-27.el5_7.4.x86_64.rpm	SHA-256: 7f6695b0bacd4575db29fd73c0578a7bdecd87db610e63ccfcaa6bb6984dfd22