The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.
| Software | From | Fixed in |
|---|---|---|
| apache / http_server | 2.2.0 | 2.2.31 |
| apache / http_server | 2.4.0 | 2.4.16 |