CVEs-PoC/2017/CVE-2017-2671.md

### [CVE-2017-2671](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2671)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20n%2Fa%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

### POC

#### Reference
- https://github.com/danieljiang0415/android_kernel_crash_poc
- https://www.exploit-db.com/exploits/42135/

#### Github
- https://github.com/homjxi0e/CVE-2017-2671