cve/2018/CVE-2018-5821.md

### [CVE-2018-5821](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5821)
![](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=Improper%20Restriction%20of%20Operations%20within%20the%20Bounds%20of%20a%20Memory%20Buffer%20in%20WLAN&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, in function wma_wow_wakeup_host_event(), wake_info->vdev_id is received from FW and is used directly as array index to access wma->interfaces whose max index should be (max_bssid-1). If wake_info->vdev_id is greater than or equal to max_bssid, an out-of-bounds read occurs.

### POC

#### Reference
No PoCs from references.

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