### [CVE-2009-4008](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4008)
![](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)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.

### POC

#### Reference
- http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz
- http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz

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