CentOS Errata and Security Advisory 2005:748
https://rhn.redhat.com/errata/RHSA-2005-748.html
UPDATE info: This package was updated to resolve centos bug #999. The packages were not handling the mail() call correctly.
The following updated files have been uploaded and are currently syncing to the mirrors:
files: updates/x86_64/RPMS/php-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-devel-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-imap-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-ldap-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-mysql-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-odbc-4.3.2-25.ent.centos.1.x86_64.rpm updates/x86_64/RPMS/php-pgsql-4.3.2-25.ent.centos.1.x86_64.rpm
To apply these run: yum update php*
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