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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | 5.0.0 (including) | 5.2.3 (excluding) |
| Php5 | Ubuntu | dapper | * |
| Php5 | Ubuntu | edgy | * |
| Php5 | Ubuntu | feisty | * |
| Php5 | Ubuntu | upstream | * |