Security Advisory - Use After Free Vulnerability in TEE Module of Some Huawei Smart Phones

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