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) |
| JBEWS 1.0 for RHEL 4 | RedHat | httpd22-0:2.2.14-11.jdk6.ep5.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | httpd-0:2.2.3-31.el5_4.4 | * |
| Red Hat JBoss Enterprise Web Server 1 for RHEL 5 | RedHat | httpd-0:2.2.14-1.2.6.jdk6.ep5.el5 | * |
| Apache2 | Ubuntu | devel | * |
| Apache2 | Ubuntu | hardy | * |
| Apache2 | Ubuntu | intrepid | * |
| Apache2 | Ubuntu | jaunty | * |
| Apache2 | Ubuntu | karmic | * |
| Apache2 | Ubuntu | upstream | * |