cve/2014/CVE-2014-9715.md

### [CVE-2014-9715](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9715)
![](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

include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.

### POC

#### Reference
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5
- http://www.openwall.com/lists/oss-security/2015/04/08/1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

#### Github
- https://github.com/ARPSyndicate/cvemon