CVE-2017-17320 Use after free in Mate 9 Pro

High 7.8 Published 20 Mar 2018 Updated 5 Aug 2024

A double free vulnerability in Huawei Mate 9 Pro allows malicious code execution if a user with root privileges installs a crafted 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-2017-17320?

CVE-2017-17320 is a high-severity use after free vulnerability in Huawei Technologies Co., Ltd. Mate 9 Pro, published on 20 Mar 2018. 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

Huawei Mate 9 Pro smartphones with software of LON-AL00BC00B139D, LON-AL00BC00B229, LON-L29DC721B188 have a memory double free vulnerability. The system does not manage the memory properly, that frees on the same memory address twice. An attacker tricks the user who has root privilege to install a crafted application, successful exploit could result in malicious code execution.

Weakness: CWE-415

Which versions are affected by CVE-2017-17320?

It affects 1 product.

Products include Huawei Mate 9 Pro Firmware.

How do I fix CVE-2017-17320?

No fix has been published for CVE-2017-17320 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-2017-17320 being exploited?

There is no known exploitation of CVE-2017-17320 in the wild and no public exploit code.

Sources

Also known as GHSA-9w3x-5xrr-jfm6.