Fixed a safe_mode bypass in tempnam() identified by Grzegorz Stachowiak. (CVE-2009-3557, Rasmus)
Fixed a open_basedir bypass in posix_mkfifo() identified by Grzegorz Stachowiak. (CVE-2009-3558, Rasmus)
Added "max_file_uploads" INI directive, which can be set to limit the number of file uploads per-request to 20 by default, to PRevent possible DOS via temporary file exhaustion, identified by Bogdan Calin. (CVE-2009-4017, Ilia)
Added protection for $_session from interrupt corruption and improved "session.save_path" check, identified by Stefan Esser. (CVE-2009-4143, Stas)
Fixed bug #49785 (insufficient input string validation of htmlspecialchars()). (CVE-2009-4142, Moriyoshi, hello at iwamot dot com)