CVE-2017-8203 Use after free in Nova 2 Plus,Nova 2

High 7.8 Published Updated

A use-after-free vulnerability in Huawei Nova smartphones allows arbitrary code execution if a user installs a malicious high-privilege application.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-8203?

CVE-2017-8203 is a high-severity use after free vulnerability in Huawei Technologies Co., Ltd. Nova 2 Plus,Nova 2, published on 22 Nov 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The Bastet Driver of Nova 2 Plus,Nova 2 Huawei smart phones with software of Versions earlier than BAC-AL00C00B173,Versions earlier than PIC-AL00C00B173 has a use after free (UAF) vulnerability. An attacker can convince a user to install a malicious application which has a high privilege to exploit this vulnerability, Successful exploitation may cause arbitrary code execution.

Weakness: CWE-416

Which versions are affected by CVE-2017-8203?

It affects 2 products.

Products include Huawei Nova 2 Firmware, Huawei Nova 2 Plus Firmware.

How do I fix CVE-2017-8203?

No fix has been published for CVE-2017-8203 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2017-8203 being exploited?

There is no known exploitation of CVE-2017-8203 in the wild and no public exploit code.

Sources

Also known as GHSA-x4r6-c6j7-6hfx.

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