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PHP BZip2/Zip Wrappers Multiple Safe_Mode and Open_Basedir Restriction Bypass Vulnerabilities

PHP is prone to multiple 'safe_mode' and 'open_basedir' restriction-bypass vulnerabilities. Successful exploits could allow an attacker to access sensitive information or to write files in unauthorized locations.

These vulnerabilities would be issues in shared-hosting configurations where multiple users can create and execute arbitrary PHP script code; in such cases, the 'safe_mode' and 'open_basedir' restrictions are expected to isolate users from each other.

PHP 5.2.1 and prior versions are vulnerable to these issues.