The balancer_handler function in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6, when a threaded Multi-Processing Module is used, allows remote authenticated users to cause a denial of service (child process crash) via an invalid bb variable.
| Software | From | Fixed in |
|---|---|---|
| apache / http_server | 2.2 | 2.2.x |
| apache / http_server | 2.2.1 | 2.2.1.x |
| apache / http_server | 2.2.2 | 2.2.2.x |
| apache / http_server | 2.2.3 | 2.2.3.x |
| apache / http_server | 2.2.4 | 2.2.4.x |
| apache / http_server | 2.2.6 | 2.2.6.x |