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Security Advisory - Input Validation Vulnerability in Wi-Fi Driver of Huawei Smart Phones

  • SA No:huawei-sa-20161109-01-smartphone
  • Initial Release Date: 2016-11-09
  • Last Release Date: 2016-11-09

There is an input validation vulnerability in the Wi-Fi Driver of some Huawei smart phones. An attacker may trick a user into installing a malicious application, and the application can exploit this vulnerability to gain privileges for certain system calls. (Vulnerability ID: HWPSIRT-2016-11026)
This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-2475.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link: 
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20161109-01-smartphone-en

Product Name

Affected Version

Resolved Product and Version

Mate 8

Versions before NXT-L29BC432B192

NXT-L29BC432B192[1]


[1] Smart phones will receive a system update prompt. The vulnerabilities will be fixed after users install the update.

The malicious application can exploit this vulnerability to gain privileges for certain system calls.
The vulnerability classification has been performed by using the CVSSv3 scoring system (https://www.first.org/cvss/specification-document).
Base Score: 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) 
Temporal Score: 7.2 (E:F/RL:O/RC:C)
1. Prerequisite:
The attacker successfully tricks a user into installing a malicious application on the smart phone;
2. Attacking procedure:
An attacker may trick a user into installing a malicious application, and the application can exploit this vulnerability to gain privileges for certain system calls.

Smart phones that support automatic update will receive a system update prompt. You can install the update to fix the vulnerability.

This vulnerability was disclosed by Di Shen and Jiahong Fang at the Black Hat Europe 2016 conference held in November 2016.

2016-11-09 V1.0 INITIAL

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