Unspecified vulnerability in the chunk_split function in PHP before 5.2.4 has unknown impact and attack vectors, related to an incorrect size calculation.
https://launchpad.net/bugs/173043
http://www.vupen.com/english/advisories/2007/3023
http://www.ubuntu.com/usn/usn-549-2
http://www.php.net/releases/5_2_4.php
http://www.php.net/ChangeLog-5.php#5.2.4
http://www.mandriva.com/security/advisories?name=MDVSA-2008:126
http://www.mandriva.com/security/advisories?name=MDVSA-2008:125
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
http://www.debian.org/security/2008/dsa-1444
http://secunia.com/advisories/28249
http://secunia.com/advisories/27864