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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.
None


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

None

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.