The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | * | 5.3.0 (including) |
| Php | Php | 5 (including) | 5 (including) |
| Php | Php | 5.0-rc1 (including) | 5.0-rc1 (including) |
| Php | Php | 5.0-rc2 (including) | 5.0-rc2 (including) |
| Php | Php | 5.0-rc3 (including) | 5.0-rc3 (including) |
| Php | Php | 5.0.0 (including) | 5.0.0 (including) |
| Php | Php | 5.0.0-beta1 (including) | 5.0.0-beta1 (including) |
| Php | Php | 5.0.0-beta2 (including) | 5.0.0-beta2 (including) |
| Php | Php | 5.0.0-beta3 (including) | 5.0.0-beta3 (including) |
| Php | Php | 5.0.0-beta4 (including) | 5.0.0-beta4 (including) |
| Php | Php | 5.0.0-rc1 (including) | 5.0.0-rc1 (including) |
| Php | Php | 5.0.0-rc2 (including) | 5.0.0-rc2 (including) |
| Php | Php | 5.0.0-rc3 (including) | 5.0.0-rc3 (including) |
| Php | Php | 5.0.1 (including) | 5.0.1 (including) |
| Php | Php | 5.0.2 (including) | 5.0.2 (including) |
| Php | Php | 5.0.3 (including) | 5.0.3 (including) |
| Php | Php | 5.0.4 (including) | 5.0.4 (including) |
| Php | Php | 5.0.5 (including) | 5.0.5 (including) |
| Php | Php | 5.1.0 (including) | 5.1.0 (including) |
| Php | Php | 5.1.1 (including) | 5.1.1 (including) |
| Php | Php | 5.1.2 (including) | 5.1.2 (including) |
| Php | Php | 5.1.3 (including) | 5.1.3 (including) |
| Php | Php | 5.1.4 (including) | 5.1.4 (including) |
| Php | Php | 5.1.5 (including) | 5.1.5 (including) |
| Php | Php | 5.1.6 (including) | 5.1.6 (including) |
| Php | Php | 5.2.0 (including) | 5.2.0 (including) |
| Php | Php | 5.2.1 (including) | 5.2.1 (including) |
| Php | Php | 5.2.2 (including) | 5.2.2 (including) |
| Php | Php | 5.2.3 (including) | 5.2.3 (including) |
| Php | Php | 5.2.4 (including) | 5.2.4 (including) |
| Php | Php | 5.2.5 (including) | 5.2.5 (including) |
| Php | Php | 5.2.6 (including) | 5.2.6 (including) |
| Php | Php | 5.2.7 (including) | 5.2.7 (including) |
| Php | Php | 5.2.8 (including) | 5.2.8 (including) |
| Php | Php | 5.2.9 (including) | 5.2.9 (including) |
| Php | Php | 5.2.10 (including) | 5.2.10 (including) |
| Php | Php | 5.2.11 (including) | 5.2.11 (including) |
| Php5 | Ubuntu | dapper | * |
| Php5 | Ubuntu | devel | * |
| Php5 | Ubuntu | hardy | * |
| Php5 | Ubuntu | intrepid | * |
| Php5 | Ubuntu | jaunty | * |
| Php5 | Ubuntu | karmic | * |
| Php5 | Ubuntu | upstream | * |