Security Advisory - Use After Free Vulnerability in TEE Module of Some Huawei Smart Phones
- SA No:huawei-sa-20170615-01-smartphone
- Initial Release Date: Jun 15, 2017
- Last Release Date: Jun 15, 2017
The Trusted Execution Environment (TEE) module driver of some Huawei smart phones has a use after free (UAF) vulnerability. An attacker tricks a user into installing a malicious application, and the application can start multiple threads and try to create and free specific memory, which could triggers access memory after free it and causes a system crash or arbitrary code execution. (Vulnerability ID: HWPSIRT-2017-04003)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-8142.
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-20170615-01-smartphone-en
|
Product Name |
Affected Version |
Resolved Product and Version |
|
Mate 9 |
Versions earlier than MHA-AL00BC00B221 |
MHA-AL00BC00B221 |
| Mate 9 Pro |
Versions earlier than LON-AL00BC00B221 |
LON-AL00BC00B221 |
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: 6.7 (AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H)Temporal Score: 6.2 (E:F/RL:O/RC:C)
The attacker has successfully tricked a user into installing the malicious application.
Vulnerability details:
The TEE module driver of some Huawei smart phones has a UAF vulnerability. An attacker tricks a user into installing a malicious application, and the application can start multiple threads and try to create and free specific memory, which could triggers access memory after free it 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.
2017-06-15 V1.0 INITIAL
None
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