php is vulnerable to arbitrary code execution. A flaw was found in handling of dynamic changes to global variables. A script which used certain functions which change global variables could be forced to enable the register_globals configuration option, possibly resulting in global variable injection.
secunia.com/advisories/26642
secunia.com/advisories/26822
secunia.com/advisories/26838
secunia.com/advisories/27102
secunia.com/advisories/27377
secunia.com/advisories/28249
www.debian.org/security/2008/dsa-1444
www.gentoo.org/security/en/glsa/glsa-200710-02.xml
www.php.net/ChangeLog-5.php#5.2.4
www.php.net/releases/5_2_4.php
www.redhat.com/security/updates/classification/#moderate
www.trustix.org/errata/2007/0026/
www.vupen.com/english/advisories/2007/3023
access.redhat.com/errata/RHSA-2007:0917
exchange.xforce.ibmcloud.com/vulnerabilities/36380
issues.rpath.com/browse/RPL-1693
issues.rpath.com/browse/RPL-1702