### [CVE-2017-14880](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14880)
![](https://img.shields.io/static/v1?label=Product&message=Android%20for%20MSM%2C%20Firefox%20OS%20for%20MSM%2C%20QRD%20Android&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Time-of-check%20Time-of-use%20(TOCTOU)%20Race%20Condition%20in%20Data&color=brighgreen)

### Description

In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, while IPA WAN-driver is processing multiple requests from modem/user-space module, the global variable "num_q6_rule" does not have a mutex lock and thus can be accessed and modified by multiple threads.

### POC

#### Reference
No PoCs from references.

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