CVE-2020-9247 Memory corruption in HONOR 20 PRO

High 7.8 Published Updated

A buffer overflow in Huawei smartphones allows attackers to execute arbitrary code by tricking users into installing 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-2020-9247?

CVE-2020-9247 is a high-severity memory corruption vulnerability in Huawei HONOR 20 PRO, published on 7 Dec 2020. 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

There is a buffer overflow vulnerability in several Huawei products. The system does not sufficiently validate certain configuration parameter which is passed from user that would cause buffer overflow. The attacker should trick the user into installing and running a malicious application with a high privilege, successful exploit may cause code execution. Affected product include Huawei HONOR 20 PRO, Mate 20, Mate 20 Pro, Mate 20 X, P30, P30 Pro, Hima-L29C, Laya-AL00EP, Princeton-AL10B, Tony-AL00B, Yale-L61A, Yale-TL00B and YaleP-AL10B.

Weakness: CWE-120

Which versions are affected by CVE-2020-9247?

It affects 13 products.

Products include Huawei Hima-L29c Firmware, Huawei Honor 20 Pro Firmware, Huawei Laya-Al00ep Firmware, Huawei Mate 20 Firmware, Huawei Mate 20 Pro Firmware, Huawei Mate 20 X Firmware and 7 more.

How do I fix CVE-2020-9247?

No fix has been published for CVE-2020-9247 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-9247 being exploited?

There is no known exploitation of CVE-2020-9247 in the wild and no public exploit code.

Sources

Also known as GHSA-c423-vwh6-449m.

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