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Security Advisory - Memory Double Free Vulnerability in Touch Panel Driver of Some Huawei Smart Phones

  • SA No:huawei-sa-20170612-01-smartphone
  • Initial Release Date: 2017-06-12
  • Last Release Date: 2017-06-12

The Touch Panel (TP) driver of some Huawei smart phones has a memory double free vulnerability. An attacker with the root privilege of the Android system tricks a user into installing a malicious application, and the application can start multiple threads and try to free specific memory, which could triggers double free and causes a system crash or arbitrary code execution. (Vulnerability ID: HWPSIRT-2017-04111)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-8141.
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-20170612-01-smartphone-en

Product Name

Affected Version

Resolved Product and Version

P10 Plus

Versions earlier than VKY-AL00C00B153

VKY-AL00C00B153

Successful exploitation of the vulnerability allows attackers to crash the system or execute arbitrary code.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 6.5 (AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H)
Temporal Score: 6.0 (E:F/RL:O/RC:C)

Technique Details
This vulnerability can be exploited only when the following conditions are present:
The attacker has the root privilege of the Android system and tricks a user into installing a malicious application on the smart phone.
Vulnerability details:
The TP driver of some Huawei smart phones has a memory double free vulnerability. An attacker with the root privilege of the Android system tricks a user into installing a malicious application, and the application can start multiple threads and try to free specific memory, which could triggers double free and causes a system crash or arbitrary code execution.

None


The product that supports automatic update will receive a system update prompt. You can install the update to fix the vulnerability.

This vulnerability was reported to Huawei PSIRT by Yonggang Guo of IceSword Lab, Qihoo 360 Technology Co. Ltd. Huawei would like to thank Yonggang Guo for working with us and coordinated vulnerability disclosure to protect our customers.

2017-06-12 V1.0 INITIAL

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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.