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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: Jun 12, 2017
  • Last Release Date: Jun 12, 2017

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.

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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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.

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