The ap_proxy_ajp_request function in mod_proxy_ajp.c in mod_proxy_ajp in the Apache HTTP Server 2.2.x before 2.2.15 does not properly handle certain situations in which a client sends no request body, which allows remote attackers to cause a denial of service (backend server outage) via a crafted request, related to use of a 500 error code instead of the appropriate 400 error code.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Http_server | Apache | 2.2 (including) | 2.2 (including) |
| Http_server | Apache | 2.2.0 (including) | 2.2.0 (including) |
| Http_server | Apache | 2.2.2 (including) | 2.2.2 (including) |
| Http_server | Apache | 2.2.3 (including) | 2.2.3 (including) |
| Http_server | Apache | 2.2.4 (including) | 2.2.4 (including) |
| Http_server | Apache | 2.2.6 (including) | 2.2.6 (including) |
| Http_server | Apache | 2.2.8 (including) | 2.2.8 (including) |
| Http_server | Apache | 2.2.9 (including) | 2.2.9 (including) |
| Http_server | Apache | 2.2.11 (including) | 2.2.11 (including) |
| Http_server | Apache | 2.2.12 (including) | 2.2.12 (including) |
| Http_server | Apache | 2.2.13 (including) | 2.2.13 (including) |
| Http_server | Apache | 2.2.14 (including) | 2.2.14 (including) |