cve/2021/CVE-2021-22999.md

### [CVE-2021-22999](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22999)
![](https://img.shields.io/static/v1?label=Product&message=BIG-IP&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=DoS&color=brighgreen)

### Description

On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/DNTYO/F5_Vulnerability