CVE-2016-8763 Use after free in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions

High 7.8 Published 2 Apr 2017 Updated 6 Aug 2024

Attackers can exploit a TrustZone driver flaw to cause system restarts or elevate privileges on affected Huawei smartphones.

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-2016-8763?

CVE-2016-8763 is a high-severity use after free vulnerability in P9,P9 Lite,P8 Lite Versions earlier than EVA-AL10C00B352,VNS-L21C185B130 and earlier versions,ALE-L02C636B150 and earlier versions, published on 2 Apr 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 TrustZone driver in Huawei P9 phones with software Versions earlier than EVA-AL10C00B352 and P9 Lite with software VNS-L21C185B130 and earlier versions and P8 Lite with software ALE-L02C636B150 and earlier versions has an improper resource release vulnerability, which allows attackers to cause a system restart or privilege elevation.

Weakness: CWE-664

Which versions are affected by CVE-2016-8763?

It affects 3 products.

Products include Huawei P8 Lite Firmware, Huawei P9 Firmware, Huawei P9 Lite Firmware.

How do I fix CVE-2016-8763?

No fix has been published for CVE-2016-8763 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-2016-8763 being exploited?

There is no known exploitation of CVE-2016-8763 in the wild and no public exploit code.

Sources

Also known as GHSA-7868-9j9h-fr97.