PHP 5 before 5.2.3 does not enforce the open_basedir or safe_mode
restriction in certain cases, which allows context-dependent attackers
to determine the existence of arbitrary files by checking if the
readfile function returns a string. NOTE: this issue might also
involve the realpath function.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
Disclaimer: The entry creation date may reflect when
the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security