### [CVE-2016-4957](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4957)
![](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

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet.  NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.

### POC

#### Reference
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

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