cve/2019/CVE-2019-20800.md

### [CVE-2019-20800](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20800)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
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### Description

In Cherokee through 1.2.104, remote attackers can trigger an out-of-bounds write in cherokee_handler_cgi_add_env_pair in handler_cgi.c by sending many request headers, as demonstrated by a GET request with many "Host: 127.0.0.1" headers.

### POC

#### Reference
- https://github.com/cherokee/webserver/issues/1224
- https://github.com/cherokee/webserver/issues/1224
- https://logicaltrust.net/blog/2019/11/cherokee.html
- https://logicaltrust.net/blog/2019/11/cherokee.html

#### Github
No PoCs found on GitHub currently.