(RHSA-2014:1012) Moderate: php53 and php security update

PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Server. PHP’s fileinfo module provides functions used to identify a
particular file according to the type of data contained by the file.

Multiple denial of service flaws were found in the way the File Information
(fileinfo) extension parsed certain Composite Document Format (CDF) files.
A remote attacker could use either of these flaws to crash a PHP
application using fileinfo via a specially crafted CDF file.
(CVE-2014-0237, CVE-2014-0238, CVE-2014-3479, CVE-2014-3480, CVE-2012-1571)

Two denial of service flaws were found in the way the File Information
(fileinfo) extension handled indirect and search rules. A remote attacker
could use either of these flaws to cause a PHP application using fileinfo
to crash or consume an excessive amount of CPU. (CVE-2014-1943,
CVE-2014-2270)

A heap-based buffer overflow flaw was found in the way PHP parsed DNS TXT
records. A malicious DNS server or a man-in-the-middle attacker could
possibly use this flaw to execute arbitrary code as the PHP interpreter if
a PHP application used the dns_get_record() function to perform a DNS
query. (CVE-2014-4049)

A type confusion issue was found in PHP’s phpinfo() function. A malicious
script author could possibly use this flaw to disclose certain portions of
server memory. (CVE-2014-4721)

A buffer over-read flaw was found in the way the DateInterval class parsed
interval specifications. An attacker able to make a PHP application parse a
specially crafted specification using DateInterval could possibly cause the
PHP interpreter to crash. (CVE-2013-6712)

A type confusion issue was found in the SPL ArrayObject and
SPLObjectStorage classes’ unserialize() method. A remote attacker able to
submit specially crafted input to a PHP application, which would then
unserialize this input using one of the aforementioned methods, could use
this flaw to execute arbitrary code with the privileges of the user running
that PHP application. (CVE-2014-3515)

The CVE-2014-0237, CVE-2014-0238, CVE-2014-3479, and CVE-2014-3480 issues
were discovered by Francisco Alonso of Red Hat Product Security.

All php53 and php users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues.