Moderate: php security, bug fix and enhancement update

Updated php packages that fix three security issues, several bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.

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.

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

It was found that PHP did not check for carriage returns in HTTP headers,
allowing intended HTTP response splitting protections to be bypassed.
Depending on the web browser the victim is using, a remote attacker could
use this flaw to perform HTTP response splitting attacks. (CVE-2011-1398)

An integer signedness issue, leading to a heap-based buffer underflow, was
found in the PHP scandir() function. If a remote attacker could upload an
excessively large number of files to a directory the scandir() function
runs on, it could cause the PHP interpreter to crash or, possibly, execute
arbitrary code. (CVE-2012-2688)

It was found that PHP did not correctly handle the magic_quotes_gpc
configuration directive. This could result in magic_quotes_gpc input
escaping not being applied in all cases, possibly making it easier for a
remote attacker to perform SQL injection attacks. (CVE-2012-0831)

These updated php packages also include numerous bug fixes and
enhancements. Space precludes documenting all of these changes in this
advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical
Notes, linked to in the References, for information on the most significant
of these changes.

All users of php are advised to upgrade to these updated packages, which
fix these issues and add these enhancements. After installing the updated
packages, the httpd daemon must be restarted for the update to take effect.

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

771738 - var_export on negative array indexes returns unsigned index id
789468 - CVE-2012-0831 php: PG(magic_quote_gpc) was not restored on shutdown
812819 - setDate, setISODate, setTime works wrong when DateTime created from timestamp
824199 - PDOStatement execute segfaults for pdo_mysql driver
824293 - Include php-fpm in php build
828051 - CVE-2012-2688 php: Integer Signedness issues in _php_stream_scandir
833545 - dependencies on php-common are not arch-specific.
837042 - add php(language) virtual provide
853329 - CVE-2011-1398 PHP: sapi_header_op() %0D sequence handling security bypass
858653 - fileinfo extension: use stat function from stream wrapper
868375 - $this becomes a non-object
874987 - Missing provides in php-xml

https://www.redhat.com/security/data/cve/CVE-2011-1398.html
https://www.redhat.com/security/data/cve/CVE-2012-0831.html
https://www.redhat.com/security/data/cve/CVE-2012-2688.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.4_Technical_Notes/php.html