The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | 4.4.0 (including) | 4.4.7 (excluding) |
| Php | Php | 5.0.0 (including) | 5.2.2 (excluding) |
| Php | Php | 4.0.1 (including) | 4.0.1 (including) |
| Php | Php | 4.0.1-patch1 (including) | 4.0.1-patch1 (including) |
| Php | Php | 4.0.1-patch2 (including) | 4.0.1-patch2 (including) |
| Php | Php | 4.0.2 (including) | 4.0.2 (including) |
| Php | Php | 4.0.3 (including) | 4.0.3 (including) |
| Php | Php | 4.0.3-patch1 (including) | 4.0.3-patch1 (including) |
| Php | Php | 4.0.4 (including) | 4.0.4 (including) |
| Php | Php | 4.0.5 (including) | 4.0.5 (including) |
| Php | Php | 4.0.6 (including) | 4.0.6 (including) |
| Php | Php | 4.0.7 (including) | 4.0.7 (including) |
| Php | Php | 4.0.7-rc1 (including) | 4.0.7-rc1 (including) |
| Php | Php | 4.0.7-rc2 (including) | 4.0.7-rc2 (including) |
| Php | Php | 4.0.7-rc3 (including) | 4.0.7-rc3 (including) |
| Php | Php | 4.1.0 (including) | 4.1.0 (including) |
| Php | Php | 4.1.1 (including) | 4.1.1 (including) |
| Php | Php | 4.1.2 (including) | 4.1.2 (including) |
| Php | Php | 4.2.0 (including) | 4.2.0 (including) |
| Php | Php | 4.2.1 (including) | 4.2.1 (including) |
| Php | Php | 4.2.2 (including) | 4.2.2 (including) |
| Php | Php | 4.2.3 (including) | 4.2.3 (including) |
| Php | Php | 4.3.0 (including) | 4.3.0 (including) |
| Php | Php | 4.3.1 (including) | 4.3.1 (including) |
| Php | Php | 4.3.2 (including) | 4.3.2 (including) |
| Php | Php | 4.3.3 (including) | 4.3.3 (including) |
| Php | Php | 4.3.4 (including) | 4.3.4 (including) |
| Php | Php | 4.3.5 (including) | 4.3.5 (including) |
| Php | Php | 4.3.6 (including) | 4.3.6 (including) |
| Php | Php | 4.3.7 (including) | 4.3.7 (including) |
| Php | Php | 4.3.8 (including) | 4.3.8 (including) |
| Php | Php | 4.3.9 (including) | 4.3.9 (including) |
| Php | Php | 4.3.10 (including) | 4.3.10 (including) |
| Php | Php | 4.3.11 (including) | 4.3.11 (including) |