Huawei Frame Buffer Driver Arbitrary Memory Write

  • Published: 18 Jul 2017

Huawei Frame Buffer Driver Arbitrary Memory Write

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Type

  • Memory Write

Severity

  • High

Affected products

  • Huawei Y6 Pro Dual SIM (TIT-L01C576B115)

CVE Reference

  • N/A
Timeline
2017-03-28Issue reported to Huawei.
2017-06-05Huawei confirmed this issue was fixed in version TIT-L01C576B119.

Download the advisory here

Description

Huawei is a company that provides networking and telecommunications equipment.

The MediaTek frame buffer driver, as shipped with Huawei Y6 Pro, implements an IOCTL interface vulnerable to an arbitrary memory write due to insufficient input validation.

Impact

Local processes running in the context of a system application, media server, or system server can leverage the frame buffer driver memory corruption to escalate their privileges to root or kernel.

Cause

The MediaTek frame buffer driver fails to validate user-supplied data.

Solution

This vulnerability was resolved by Huawei in version TIT-L01C576B119. More information can be found on the Huawei web page: http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170527-01-smartphone-en

Technical details

Please refer to the attached advisory.