### [CVE-2015-8709](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8709)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call.  NOTE: the vendor states "there is no kernel bug here.

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2015/12/17/12

#### Github
- https://github.com/ARPSyndicate/cve-scores