### [CVE-2014-4045](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4045)
![](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

The Publish/Subscribe Framework in the PJSIP channel driver in Asterisk Open Source 12.x before 12.3.1, when sub_min_expiry is set to zero, allows remote attackers to cause a denial of service (assertion failure and crash) via an unsubscribe request when not subscribed to the device.

### POC

#### Reference
- http://packetstormsecurity.com/files/127087/Asterisk-Project-Security-Advisory-AST-2014-005.html

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