CVE-2006-3011 multiple PHP safe mode bypasses (CVE-2006-4481, CVE-2006-2563)
The error_log function in basic_functions.c in PHP before 4.4.4 and 5.x before 5.1.5 allows local users to bypass safe mode and open_basedir restrictions via a "php://" or other scheme in the third argument, which disables safe mode.